Arc 7The Amazon Battle

Li Xiang and the Science Kingdom pursued the source of the Petrification Devices through the Amazon, where Stanley’s attack killed several companions and left Li Xiang dead before the beam petrified the battlefield. After the conflict spread to the Americas, the tuned device petrified the world again, and Watermelon awakened two years later.

  • Senku, Xeno, and Chrome traced the Petrification Beam’s first target to the Amazon, while Li Xiang supported the crew and helped recover the platinum needed to make Revival Fluid.
  • The group revived their companions, found Chelsea, and entered the rainforest, where Li Xiang and Xeno became separated and she cared for him through a fever and dangerous trek before Homura reunited them with the others.
  • Senku and Xeno began cooperating to investigate the devices, while Joel dismantled one and discovered that a Black Crystal triggered petrification.
  • Thorn attacked Ryusui and Li Xiang, and Li Xiang killed him before the Petrification Beam swept the area and Senku revived everyone.
  • The crew built motorcycles and found a valley full of drained Petrification Devices, then headed to Araxa Mine to obtain diamonds and prepared an automatic revival plan against Stanley’s pursuing force.
  • Stanley’s soldiers attacked the camp, killing Kohaku, Tsukasa, and Hyoga, while Li Xiang fought to defend her companions and was shot as Gen watched.
  • Li Xiang survived Stanley’s first shot because Ruri’s amulet blocked it, took Xeno hostage, and threatened Stanley’s troops, but she died as the Petrification Beam swept through the camp.
  • Joel tuned a Petrification Device, but Brody seized it, and Senku’s voice activated its beam across the world, after two years, a thunderstorm shattered the Revival Fluid bottle above Watermelon, who awakened.
Chapters 151–175 Vol. 2 Read

Ch. 151Their first collaboration

Senku and Xeno calculated that the Petrification Beam first struck deep in South America's Amazon Rainforest, and Xeno agreed to help investigate the extraterrestrial enemy. Li Xiang brought them lunch, and Xeno discovered he enjoyed her cooking.

  • Senku told the bound Xeno that his goal was to revive everyone and explained his theory that an extraterrestrial civilization had fired the Petrification Beam at Earth.
  • Xeno found Senku's deductions convincing and agreed that he might help him investigate.
  • Senku and Xeno used frothy bubbles and calculations to identify the Amazon Rainforest in South America as the beam's initial target, and Chrome joined them and followed their reasoning.
  • Li Xiang brought lunch, told Chrome to wash his hands, and introduced Xeno to meat-stuffed flatbread, sweet-and-sour pork, and hot-and-sour shredded potatoes.
  • Xeno enjoyed Li Xiang's cooking and praised her skills as a physician and cook.

Ch. 152Cheating?

During the long voyage to the Amazon, Li Xiang invented card games to entertain the crew and secretly cheated to help her team win a chemistry-themed match. Afterward, she had Grandpa Fossil make a Mahjong set while the ship continued toward its destination.

  • Li Xiang invented playing cards, and the crew gathered to play Dou Dizhu aboard the ship.
  • Li Xiang created Chemistry Element Playing Cards for Senku, Xeno, and Chrome, then teamed up with Chrome against Senku and Xeno.
  • Chrome accidentally played an SOS card instead of SO₂, and Xeno played F₂, leaving Li Xiang's team apparently on the verge of losing.
  • Li Xiang revealed four oxygen cards as a bomb, played Br₂ to finish the game, and celebrated the win with Chrome.
  • Gen realized Li Xiang had secretly swapped cards in Chrome's hand, while Tsukasa, Gen, and Shrike watched.
  • Li Xiang asked Grandpa Fossil to make a Mahjong set, and the ship continued sailing toward the Amazon.

Ch. 153Teacher Gen at leisure

Gen overcame his feelings of uselessness by becoming the ship’s teacher, while Li Xiang prepared the crew for the Amazon and resumed the Viewing System’s story. The viewing ended with the Harem infiltrators obtaining and sending out the platinum.

  • Gen felt like a burden until Francois reminded him that his empathy and communication skills could help save his companions, then cheered him with a chocolate cake.
  • Gen decided to teach the post-petrification villagers to read, and Li Xiang supported him as he became Teacher Gen aboard the ship.
  • Li Xiang prepared insect repellents and first-aid kits with help from Yuzuriha before the crew reached the Amazon Rainforest.
  • Li Xiang resumed the Viewing System and watched Senku use Mechanical Mice to deliver intelligence to Chrome and the others inside the Harem.
  • Kohaku discovered something strange while on patrol, and Li Xiang and Ginro successfully obtained the platinum and sent it outside the Harem.

Ch. 154Watching and arriving in South America

The group reached South America and found Chelsea stranded in the rainforest. After bringing her to the ship, Li Xiang wondered whether revival might help with Chelsea’s congenital nearsightedness.

  • Senku and Grandpa Fossil produced Revival Fluid, and the group revived their companions and recovered their petrified fragments from the seabed.
  • After reuniting with Kohaku and the others, they noticed Li Xiang was missing from the group shown on the Viewing Screen.
  • Li Xiang closed the Viewing Screen, and the ship reached the coast of South America.
  • Li Xiang distributed insect repellent and warned the group to stay together as they traveled into the rainforest.
  • The group found Chelsea in a clearing, recognized her through Xeno, and brought her back to the ship to recover.
  • Li Xiang learned that Chelsea had been born nearsighted and wondered whether revival could help her.

Ch. 155A walking human map

Chelsea guided the group into the Amazon Rainforest after helping them make rubber boots, but Li Xiang and Xeno became separated from everyone. They stayed where they were and waited to be found.

  • Chelsea explained how to tap rubber trees, and Senku described how to make boots from the sap.
  • The group made rubber boots together while Li Xiang wandered off to catch a rhinoceros beetle, which escaped after Chrome called to her.
  • Everyone followed Chelsea deeper into the rainforest, where she warned them to stay together and keep moving.
  • Xeno tripped, and Li Xiang tried to catch him; they both fell and discovered the group had gone on without them.
  • Li Xiang and Xeno agreed to wait in place rather than risk getting more lost.

Ch. 156Two Le Les

Li Xiang and Xeno discussed why he pursued dictatorship and his ambitious Hydrogen-3 Project, then compared his energy vision with Li Xiang’s desire to cure cancer. They left the clearing together to find food while waiting for the others.

  • Li Xiang asked Xeno why he had chosen dictatorship, and he explained that rejected proposals had led him to seek direct control.
  • Xeno described his Hydrogen-3 Project to develop liquid hydrogen fuel and mine helium-3 from the moon, while Li Xiang challenged its cost and feasibility.
  • Xeno asked Li Xiang whether she could save terminal cancer patients, and she shared her determination to help people despite the odds.
  • Xeno said Li Xiang’s ideal of conquering disease was possible and greater than his own vision.
  • Li Xiang and Xeno stood up and went to look for food as they waited for the group.

Ch. 157It Actually Came in Handy?

Li Xiang and Xeno ate poisonous wild berries in the Amazon rainforest, and Xeno wandered off in a hallucination and fell from a cliff. Li Xiang saved him with an elastic cord, but after reaching the valley floor she found him feverish and severely ill.

  • Li Xiang and Xeno ate wild berries that made Li Xiang vomit and left Xeno hallucinating.
  • Xeno wandered deeper into the forest and fell from a cliff while Li Xiang chased after him.
  • Li Xiang jumped after Xeno, caught him, and used an elastic cord from her system inventory to stop their fall.
  • Li Xiang guided Xeno down the cord to the valley floor, then climbed down herself and collapsed from exhaustion and arm pain.
  • Li Xiang found Xeno vomiting with a high fever and decided to find shelter and bring his temperature down.

Ch. 158Li Xiang had a strong will to survive

Li Xiang found shelter for the feverish Xeno, cared for him, and helped him recover enough to eat. As evening fell, she wondered whether Senku, Kohaku, Ryusui, and Gen had noticed she was missing.

  • Li Xiang found a hollow tree and made a dry bed inside it for Xeno.
  • Li Xiang cooled Xeno's fever with a wet cloth and removed his outer layers, stabilizing his condition.
  • Li Xiang caught and grilled fish, boiled water, and prepared a fire beside their shelter.
  • Xeno woke, drank warm water, and ate grilled fish while Li Xiang planned to search for herbs.
  • Li Xiang watched the sun set and wondered whether Senku, Kohaku, Ryusui, and Gen had noticed her absence.

Ch. 159Oh no...

Li Xiang kept Xeno alive through a cold, rainy night after his fever returned, and he awoke recovered enough to thank her. They discussed their temporary alliance and their personal ambitions, leaving Li Xiang reflecting on her wish for an ordinary, peaceful life.

  • Li Xiang tended to Xeno's returning fever, built a fire, and used heated stones to warm him until the rain extinguished the flames.
  • Li Xiang sealed the hollow against the rain, gave Xeno her jacket, and spent the night shielding him from the wind.
  • At dawn, Li Xiang found Xeno's fever had subsided and went searching for dry firewood while he awoke and realized she had covered him with her jacket.
  • Xeno thanked Li Xiang, and she admitted she blamed herself for letting him eat the poisonous wild fruits.
  • Li Xiang and Xeno ate leftover grilled fish and agreed their unity was temporary because they still disagreed over dictatorial rule.
  • Xeno asked about Li Xiang's dream, and she described wanting a peaceful life with a home, loved ones, travel, and a quiet retirement.

Ch. 160I'll treat you to spicy strips

Li Xiang and Xeno survived a python attack while following the river and reunited with Homura, who led them back to the group. Li Xiang collapsed from a high fever after returning, and Shrike and Gen stayed to care for her.

  • Xeno spotted a python hidden in the grass, and Li Xiang cut its neck to save him before they fled along the riverbank.
  • Li Xiang cleaned her knife and bandaged a cut on her wrist, then continued upstream with Xeno until they reached the river’s source.
  • Homura found Li Xiang and Xeno and told them the group was gathering materials to build motorcycles and search for Why-Man.
  • Homura supported the feverish Xeno as the three returned to the group, while Li Xiang grew pale and unsteady.
  • Li Xiang collapsed into Shrike’s arms, and Senku sent Shrike to carry her to shelter while Gen brought fever medicine.
  • Gen gave Li Xiang medicine as Shrike stayed beside her to watch over her.

Ch. 161You're wonderful, Gen

Li Xiang woke aboard the ship and learned the original Petrification Device had been lost after Gen was captured, though Senku had arranged for a team to retrieve and study it at Xeno’s former base. She comforted Gen over his guilt, then learned the team was racing back to the Americas while the others prepared to build motorcycles.

  • Li Xiang woke from her fever, and Gen told her Senku had located Why Man and planned to build motorcycles to cross the rainforest.
  • Li Xiang asked about the original Petrification Device, and Gen admitted it had been in his care before it was lost while he was captured.
  • Li Xiang comforted Gen and reassured him that nobody blamed him for losing the device.
  • Gen told Li Xiang that You, Nikki, Yuzuriha, and others were returning to Xeno’s former base to retrieve and study the device, traveling by speedboat along a faster route.
  • Senku sent an encrypted message to Brody and the others at Xeno’s base announcing their agreement to cooperate on research into the Petrification Device.
  • Kohaku visited Li Xiang with Watermelon and reported that Xeno’s fever had broken while the group gathered rubber for motorcycles.

Ch. 162Was It Really Finished Just Like That?

Li Xiang recovered and joined the crew as they built motorcycles for their Amazon expedition. After completing six bikes, the group discussed the dangers of searching for Why Man, and Li Xiang urged them to find its trail before worrying about a possible attack.

  • Li Xiang recovered from her fever and wrist injury, then joined the crew in preparing for the rainforest expedition.
  • Xeno accepted a rubber-tapping knife from Gen and agreed to work with him temporarily to pursue the truth behind the Petrification Device and Why Man.
  • Senku directed the crew through the laborious process of making and inspecting sturdy tires by hand.
  • Grandpa Fossil and Senku assembled six engines, and the crew completed six motorcycles.
  • Gen warned that Why Man might possess an unknown power and attack them, while Li Xiang advised finding its trail before worrying about that possibility.

Ch. 163Don't get cocky

You and the others returned to the American headquarters, where Joel revived and discovered the Petrification Device’s Black Crystal core. Joel accidentally activated the device and was petrified, then revived; the chapter ended with You challenging Maya to wait for his Muscle-Building Body Wash to arrive.

  • You, Nikki, Yuzuriha, and the others reached the American Continent and reunited with Brody, who led them to the headquarters.
  • Brody showed the group the safely stored Petrification Device and explained that nobody at the base could dismantle it with their current skills.
  • Nan chose Joel, a master watch repairman, to examine the device, and the group revived him from his statue.
  • Joel carefully dismantled the device, found a Black Crystal at its core, and accidentally activated the Petrification Beam while replacing it, turning himself to stone before the group revived him.
  • Joel identified the Black Crystal as the switch that triggered petrification, while You challenged Maya after she carried heavy metal materials past him.

Ch. 164Watching Li Xiang Kill Thorn Single-handedly

Li Xiang fought Thorn after he gravely wounded Ryusui, eventually killing him before collapsing beside Ryusui. After the Petrification Beam swept over the area and Senku revived everyone, Ryusui reunited with Li Xiang at the shore as the video ended.

  • Thorn attacked Ryusui and Li Xiang, leaving Ryusui gravely wounded and turning his attention to Li Xiang.
  • Ryusui threw himself in front of Li Xiang to protect her, and she vowed to kill Thorn after he fell silent.
  • Li Xiang stabbed Thorn, strangled him with a chain, and later tortured him to death after he regained consciousness.
  • Li Xiang collapsed after killing Thorn, then carried Ryusui on her back and begged for someone to save him.
  • The Petrification Beam swept over the area, and Senku revived everyone before the others found Li Xiang beside Ryusui at the battlefield.
  • At the shore, Ryusui found Li Xiang during the gathering, and the video ended with everyone together for the evening.

Ch. 165Have You Misunderstood Something?

The group crossed a wide gorge with a pulley system and continued through the Amazon with Xeno riding blindfolded behind Li Xiang. Stanley’s team found them and fired at their motorcycles, but Li Xiang led the group to safety, leaving Xeno to explain that Stanley had mistaken her for someone mistreating him.

  • Kohaku leapt across the gorge, and Ukyo secured a rope so the group could build a pulley system and ferry everyone and the motorcycles over.
  • Li Xiang took the blindfolded and gagged Xeno on her motorcycle as the group prepared to ride deeper into the rainforest.
  • Stanley’s radar team located Xeno, and Stanley stopped his soldiers from firing at him before shooting around the motorcycles himself.
  • Ryusui warned the group about the attack, and Li Xiang dodged the bullets and led the motorcycles away from Stanley’s pursuing team.
  • After reaching safety, Li Xiang freed Xeno and complained that Stanley had been shooting at her, while Xeno said Stanley probably thought she was mistreating him.

Ch. 166Isn't That Way Too Many?

Senku and the others discovered a valley filled with undetectable, depleted Petrification Devices and decided to attach them to the Parsius to evade Stanley’s radar. Stanley lost their signal but vowed to find them as they prepared to leave with the devices.

  • Senku and the others emerged from the forest and found countless Petrification Devices piled across a valley.
  • Xeno examined a device, and Senku confirmed that the stockpiled devices had no energy left.
  • Chelsea scanned the valley and confirmed that radar could not detect the devices.
  • Gen proposed attaching the devices to the Parsius, and the group began modifying the ship to carry them.
  • Stanley’s team lost the group’s signal near the rainforest, but Stanley swore he would track them down.

Ch. 167A Strange Connection

Senku and Xeno discovered that black diamonds were embedded in the Petrification Devices, and the team chose the Araxa Mine in Brazil as their next target after artificial diamonds proved inadequate. As the Parsius prepared to leave, Li Xiang felt an unexplained ache and growing foreboding while standing alone on deck.

  • Senku and Xeno dismantled Petrification Devices and found cracked black diamonds inside their cores, while Joel independently uncovered one in the Americas.
  • Senku concluded that diamonds were needed to make and activate Petrification Devices, and Chelsea identified the Araxa Mine in Brazil as the nearest promising source.
  • Yuzuriha led the Americas team in synthesizing diamonds, but their crude equipment produced grains too small for the devices.
  • Senku warned the Americas team to minimize one-way transmissions because Stanley might trace their radio signals.
  • The Parsius crew prepared to head for the Araxa Mine, and Li Xiang left the cabin after feeling a dull ache and an increasingly strong premonition.

Ch. 168Caught up

The Parsius reached Brazil’s Araxa Mine, where Senku’s group built a fortified camp and prepared an automatic revival plan in case they all had to petrify themselves. After Taiju’s team returned with natural diamonds for research, Stanley and his pursuit team landed nearby and entered the rainforest.

  • Xeno secretly hooked his fingertips over the Parsius’s wires while the ship sailed toward Brazil.
  • Senku’s group landed near Araxa Mine and built a stronghold, then installed miniature communicators around the area.
  • Li Xiang warned that they could not fight Stanley’s armed team directly, and the group agreed to petrify together and prepare an automatic revival mechanism.
  • Chrome proposed building the revival apparatus on a nearby peak, and Senku planned to use amplified thunder to break a bottle of Revival Fluid while Li Xiang arranged buried reserves.
  • Tsukasa’s team built the apparatus, Taiju’s team mined natural diamonds, and Li Xiang, Ryusui, and Ukyo buried sealed jars of Revival Fluid beneath the camp.
  • Stanley, Charlotte, and the pursuit team landed near Araxa and entered the rainforest.

Ch. 169Going to war...

Stanley tracked the Science Kingdom’s signal into the Arasha Rainforest, where his forces ambushed the group setting up a Signal Generator. Ginro and Matsukaze were killed protecting Watermelon, while Francois successfully warned Senku’s camp before Stanley captured her at gunpoint.

  • Stanley detected a brief radar signal, followed its coordinates into the rainforest, and found the Science Kingdom’s footprints.
  • Charlotte was bitten by a venomous insect, and Watermelon exposed himself to treat her with Li Xiang’s ointment.
  • Ginro and Matsukaze shielded Watermelon from gunfire; Matsukaze was shot, and Ginro was wounded while fighting back before both were killed by a blond soldier.
  • Francois sent a warning about the surprise attack through the Long-Range Communication Device as Watermelon faced danger elsewhere.
  • Stanley pressed his gun to Francois’s forehead and asked whether she had finished sending her message.

Ch. 170A dire emergency

Francois and Watermelon escaped after Kohaku rescued them, but Stanley’s pursuit squad overwhelmed the defenders in the rainforest. Watermelon reached the camp with news that Kohaku, Tsukasa, and Hyoga were dead, leaving Li Xiang stunned.

  • Stanley captured Francois and Watermelon after Francois transmitted a message, prompting Tsukasa and Hyoga to rush from the camp while Kohaku ran after them.
  • Li Xiang told Luna and Chelsea to leave and return to rescue everyone after the Petrification Device covered the area, then prepared the camp for battle.
  • Kohaku freed Francois and Watermelon as Tsukasa and Hyoga engaged Stanley’s soldiers; a concealed gunman shot Tsukasa, Hyoga fell while shielding Kohaku, and Kohaku was killed.
  • Francois and Watermelon fled to the camp, where Watermelon told Li Xiang that Kohaku, Tsukasa, and Hyoga had died, leaving her frozen with grief.

Ch. 171Fire

Li Xiang tied up Xeno as Stanley’s troops attacked the camp, then volunteered to hold the front line while Senku and the others worked on the Petrification Device. She fought back with a grenade and a handgun but was shot in the heart, leaving Gen watching her fall as the battle continued.

  • Li Xiang bound Xeno to a chair, and Stanley led his troops into the camp, where they began bombarding it with grenades.
  • Grandpa Fossil and Chrome continued researching the Petrification Device while Ryusui and the others went to defend the front line.
  • Li Xiang reached Senku, asked him to trust her, and went into the flames to hold off Stanley’s troops.
  • Li Xiang saw Taiju and Ryusui fall, then used a grenade and handgun to attack Stanley’s soldiers.
  • A bullet struck Li Xiang over the heart, and she collapsed as Gen broke down beside her.

Ch. 172Survival

Stanley’s forces conquered the Science Kingdom, leaving Gen, Senku, and the others defeated as Xeno was freed and offered Senku a chance to work for him. A new Petrification Beam appeared, and just as Stanley aimed at Watermelon, someone shot him through the shoulder.

  • Stanley’s forces occupied the Science Kingdom, and he spared the shattered Gen while Gen rushed to Li Xiang’s body before running to the laboratory.
  • Grandpa Fossil apologized to Senku for failing to dismantle the Petrification Device, while Senku stared silently at the flames outside.
  • Stanley freed Xeno, told him Li Xiang was dead, and agreed to keep Senku and Grandpa Fossil alive as useful workers.
  • Xeno offered Senku access to scientific resources in exchange for joining him, but Senku refused his dictatorship.
  • A green Petrification Beam appeared, and Senku took Stanley’s bullet while trying to protect Watermelon from his next shot.
  • An unseen shooter hit Stanley in the left shoulder, stopping him from firing at Watermelon.

Ch. 173Achievement!-Fear

Li Xiang returned to the battlefield after surviving Stanley’s shot with the help of Ruri’s amulet, then forced Stanley’s soldiers to surrender their guns by threatening to kill Xeno with a grenade. The chapter showed her apparent death and the Petrification Beam engulfing everyone before revealing that she had survived and gone after Xeno.

  • Li Xiang stood up after Ruri’s amulet blocked Stanley’s shot and took Xeno hostage while aiming at Stanley.
  • A soldier shot Li Xiang in the lower back, but she threatened to detonate a grenade and forced Stanley and his soldiers to throw down their guns.
  • Senku told Watermelon to reach the Revival Fluid’s coverage, and Li Xiang collapsed from her wounds as Senku watched her die.
  • The Petrification Beam spread across the battlefield, and Luna and Chelsea watched the rainforest burn after losing the Revival Fluid.
  • The story returned to the moment Li Xiang was shot, revealing that Ruri’s amulet had stopped the bullet from fatally piercing her heart.
  • Li Xiang shot Stanley in the shoulder, seized Xeno, and told him she had returned to take his life.

Ch. 174You used Purify, Comrade Li Xiang

Li Xiang died after protecting Xeno and her companions, while Senku’s group faced the Petrification Beam. A flashback revealed why Xeno’s view of Li Xiang changed, and the chapter ended with her returning to threaten Stanley and Xeno before the beam petrified everyone.

  • Li Xiang died in the rainforest camp as the Petrification Beam swept over it, petrifying everyone, while Senku told Xeno that they had won together.
  • Stanley accepted that he might remain petrified forever as he watched the beam fill the sky.
  • During the camp’s destruction, Li Xiang had tied Xeno up and hidden him in a safe place, explaining that her duty as a doctor was to respect life and protect her companions.
  • Li Xiang rejected Xeno’s offer of power, saying she wanted to stay with her companions, and asked him not to hurt them after the war.
  • After learning that Li Xiang had died, Xeno felt a fierce refusal to accept it; when she later returned and aimed her gun at Stanley, she told Xeno she had crawled back from hell to claim his life.

Ch. 175Joel, the MVP

Joel completed the Petrification Device, but Brody’s men seized it and the device activated during the struggle, petrifying humanity worldwide. Two years later, a storm shattered a bottle of Revival Fluid and awakened Watermelon, the first human to return.

  • Joel finished tuning the Petrification Device, but Brody ambushed him and took it.
  • Kirisa and Homura were shot while trying to recover the device, and Joel’s arm was crushed as he tried to open its safe.
  • Senku’s voice activated the Petrification Device, and its green beam swept across the world, petrifying everyone again.
  • For two years, Chalk and Sagara stayed beside their owners’ statues as the wilderness reclaimed the camps.
  • A leopard’s roar and a later thunderstorm shattered the bottle of Revival Fluid above Watermelon’s statue.
  • The Revival Fluid broke Watermelon’s stone shell, and he awakened as the first human after two years.
Arc 7 of 10