Chapter Summaries

After the Science Kingdom’s fighters agreed to let a lot decide who would face Hyoga, Senku drew the shortest stick. He defeated Hyoga without fighting by making his stomach cramp, and Hyoga fled into the woods while Li Xiang gave Homura medicine for him.

• Li Xiang treated Kinro’s shoulder wound and gave Tsukasa medicine for diarrhea.
• Hyoga refused to submit unless someone beat him in a fair fight, and he rejected Ukyo as an opponent because Ukyo was not an original core member of the Science Kingdom.
• The group drew lots, and Senku drew the shortest stick; Li Xiang said she trusted him to win.
• Hyoga attacked Senku with his spear, but a sudden abdominal cramp made him drop it.
• Senku dragged the incapacitated Hyoga out of the fighting circle, and Hyoga ran into the woods; Li Xiang gave Homura medicine to give him when he returned.

After watching the anime explain how to make a telephone, Li Xiang and Gen produced batteries while Senku and the village worked on the devices. The two telephones were completed and successfully transmitted Li Xiang and Senku’s voices, leaving the village with working long-distance communication.

• After the anime showed Senku’s telephone research, the village began making wire, circuits, telephone bodies, and dry manganese batteries.
• Li Xiang and Gen worked through the night and produced eight hundred dry manganese batteries.
• Senku, Chrome, Li Xiang, Gen, and the others completed the first telephone, then realized they needed to build a second one.
• The team assembled a matching telephone in less than a day.
• Li Xiang and Senku tested the two devices and successfully heard each other’s voices through the wire.

After Ishigami Village celebrated the successful landline experiment, Li Xiang browsed fan discussions and fiction about Dr. STONE until she accidentally stayed up all night. She closed the forum as dawn broke.

• Li Xiang organized a village feast to celebrate the successful landline experiment, and everyone enjoyed the party around a bonfire.
• Li Xiang found a popular ranking that named her the best marriage partner and read commenters praising her while joking that Senku could stay married to science.
• Li Xiang browsed fanfiction, grew confused by unusual pairings, and received a system notification explaining the trend.
• Li Xiang kept reading stories through the night and finally closed the forum when she noticed the sky growing light.

After the Tsukasa Empire surrendered without casualties, Senku detected a mysterious radio signal repeating “Why” and decided to sail across the ocean to investigate it and search for Byakuya’s platinum. Nan agreed to help revive an expert captain, though she warned Senku that his personality was difficult.

• Ishigami Village celebrated the Tsukasa Empire’s surrender and the safe return of everyone who had gone to war.
• Senku heard a faint signal repeating “Why” through the communication cables and suspected it might be connected to the petrification.
• Senku decided to trace the signal by sea and search for the platinum Byakuya had left behind, and Li Xiang agreed to join the voyage.
• Senku explained his plan to the villagers, and they agreed to begin an ocean voyage.
• Senku asked Nan to find a capable captain, and she agreed to help revive someone despite warning that he had a difficult personality.

The Science Kingdom revived Ryusui Nanami to captain its planned ocean expedition, and he eagerly agreed to lead them once their ship was built. Ryusui joined the shipbuilding effort after an awkward misunderstanding with Li Xiang, and the kingdom began preparing for its voyage.

• Nan used her memories to lead the group to Ryusui Nanami's petrified statue, and Senku revived him with Revival Fluid.
• Ryusui announced that he wanted the whole world, then readily agreed to captain the expedition and sail once the ship was ready.
• Ryusui joined the Science Kingdom and followed Li Xiang around, eventually declaring that he wanted her.
• Li Xiang learned Ryusui had only wanted candied hawthorn skewers and sent him to help build the ship.
• Yuzuriha reassured Li Xiang, and both women went to join the others as the Science Kingdom began building its ship.

Ishigami Village held a shipbuilding frenzy as Senku and Ryusui refined plans for their voyage, then organized a competition to involve everyone. Senku and Ryusui won by a landslide, while Chrome got caught mocking Li Xiang’s drawing and was slapped.

• Senku drafted a ship design, and Ryusui corrected its cabin size and weight distribution using his shipbuilding knowledge.
• Maguma complained that villagers could not help design the ship, so Li Xiang proposed a competition open to everyone.
• Gen announced a two-hour limit, and the villagers drew and submitted their ship blueprints.
• Senku and Ryusui’s professional design impressed the villagers, while Chrome mocked Li Xiang’s crude drawing until she confronted and slapped him.
• The villagers voted Senku and Ryusui’s joint design the winner by an overwhelming margin.

Li Xiang kept Ryusui Nanami in check with sweets, then began trading desserts after Gen Asagiri recruited Little Watermelon to persuade her to make more. When Senku paid her with gold, Li Xiang was surprised to find him among her customers.

• Li Xiang gave Ryusui Nanami a candied hawthorn skewer to stop him from causing trouble at the shipbuilding site.
• Gen Asagiri complained that Li Xiang only made treats for Ryusui and wanted some for himself.
• Gen persuaded Little Watermelon to ask Li Xiang for dessert, and she agreed to make him a portion.
• After more villagers sought her desserts, Li Xiang demanded payment in scarce supplies and helped bring banknotes into existence.
• Senku paid Li Xiang with a piece of gold, startling her.

Li Xiang revived Francois to help keep Ryusui in check, and Francois joined the Science Kingdom camp as his butler. Back at camp, Li Xiang dealt with Senku’s sleepless overwork by knocking him unconscious.

• Li Xiang asked Nan to help locate and revive Francois, and Nan remembered where her statue was.
• Li Xiang, Nan, and Yuzuriha found Francois’s statue in the mountain woods and revived her with Revival Fluid.
• Francois agreed to return to camp and attend to Ryusui, then walked there without showing any fatigue.
• Ryusui welcomed Francois, who took responsibility for his personal needs and daily schedule.
• Li Xiang found Kohaku tying Senku to a pillar because he had gone days without sleep, and she knocked Senku unconscious.

Li Xiang prepared long-lasting pickled vegetables and natural preservatives for the Perseus’s voyage, while Francois baked durable bread. With fuel and provisions ready, Senku announced that the ship would soon set sail.

• Li Xiang rejected instant noodles and planned to use natural plant-based preservatives and pickled vegetables for the voyage.
• Li Xiang gathered the village’s radishes and cabbage, asked Grandpa Fossil to make large ceramic jars, and prepared the vegetables for fermentation.
• Li Xiang finished the pickles and natural preservatives, and Kohaku tasted the pickles and praised them.
• Francois baked large batches of long-lasting yeast-leavened bread, and the crew stored the food aboard the Perseus.
• Senku surveyed the supplies on the Perseus and said they would be ready to set sail very soon.

After the Perseus was completed, Senku and the others realized they needed oil before they could sail. They planned an aerial survey, built a hot-air balloon, and obtained a camera to record the terrain, leaving them ready to search for oil.

• Senku named the newly completed ship the Perseus, but the group realized they needed oil to fuel its voyage.
• Chrome suggested surveying the land from the sky, and Senku proposed building a hot-air balloon to search for oil-bearing basins.
• Li Xiang explained the steps of oil exploration, and the villagers built a passenger-carrying hot-air balloon.
• Li Xiang asked Senku for a camera to document the terrain, and Senku delivered one the following morning.
• The hot-air balloon and camera were ready, and the group prepared to begin its oil survey.

Li Xiang trained Senku to improve his stamina while the Science Kingdom completed and successfully tested its hot-air balloon. After nearly two months of searching for oil without success, Li Xiang led an underground survey team into the mountains, where a strange rustling sound suddenly came from the forest.

• Li Xiang put Senku through a stamina-training plan, and Senku finished his plank while Gen and Yuzuriha watched.
• The Science Kingdom completed its passenger-carrying hot-air balloon and sent Senku, Ryusui, and Chrome on a successful maiden flight.
• A sudden gust jolted the balloon, but Ryusui and the others steadied it, and Senku stayed put thanks to the weighted straps Li Xiang had fitted him with.
• The team used the balloon to survey the area for oil, but after nearly two months they found no trace of it.
• Li Xiang assembled a team to investigate underground in the mountain forests, and the group stopped when they heard rustling from deep in the woods.

Li Xiang and the search party discovered an oil field after a wild boar piglet knocked her down and led Homura through the forest. Senku learned that the oil could fuel the Perseus, bringing the kingdom closer to setting sail.

• A wild boar piglet charged Li Xiang and knocked her across the grass, but Tsukasa scared it away before it could attack again.
• Li Xiang recognized the pungent black residue on her clothes as a possible clue and ordered Homura to follow the piglet.
• Homura chased the piglet to a black, muddy marsh, where Li Xiang identified the thick liquid as crude oil and Hyoga confirmed that it burned.
• Kohaku spotted the search party and the dark marsh from the hot-air balloon and photographed the area.
• Li Xiang reported the discovery to Senku, who celebrated that the oil would fuel the Perseus and let them begin their voyage sooner.

The Science Kingdom set sail aboard the Perseus for Treasure Island, while Li Xiang struggled with seasickness on her first voyage. By nightfall, she had recovered enough to enjoy the beauty of the open sea beneath the stars.

• Senku called the names of the villagers chosen to sail, and Tsukasa said goodbye to Mirai before boarding the Perseus.
• Nan recorded the departure, and Ryusui took the helm as the ship set course for Treasure Island.
• Li Xiang offered Ukyo candied fruit as he watched the villagers bid them farewell.
• Chrome discovered Little Watermelon hiding in a bucket, and Senku allowed him to stay aboard as long as he behaved.
• Li Xiang became seasick, and Kohaku and Homura helped her below deck while Gen gave her an orange to ease her nausea.
• After Francois prepared her a light dinner, Li Xiang went on deck at night and admired the starry sea.

After a woman in green petrified most of the Perseus crew, Li Xiang, Kohaku, Ginro, and Nikki escaped into the woods and reunited with Senku, Gen, and Little Watermelon. Li Xiang and Kohaku went scouting, where Li Xiang captured Amaryllis and prepared to question her.

• Kohaku spotted land, but armed islanders attacked the Perseus with spears as it neared shore.
• Li Xiang sent Senku, Gen, and Little Watermelon ahead in a spare boat while the others held off the attackers.
• A woman in green unleashed a petrification attack, and Li Xiang saved Ginro and Kohaku by leaping into the sea with them; Nikki later reached shore too.
• Li Xiang and the others followed Gen's white flowers to a cave, where they reunited with Senku, Gen, and Little Watermelon and told them that the rest of the crew had been petrified.
• Senku and Kohaku set out to scout the island with Li Xiang and Ginro, and Li Xiang captured Amaryllis in the woods to question her.

Li Xiang and her companions learned from Amaryllis about the island chief’s oppression and recruited her to help them fight back. After discussing the island’s leaders and planning to regroup, Li Xiang struggled to sleep until Gen hypnotized her.

• Li Xiang questioned Amaryllis and learned that the chief oppressed the islanders and had petrified people close to her.
• Li Xiang told Amaryllis that her group were victims too and asked her to help fight the chief and save the petrified people; Amaryllis agreed.
• Amaryllis described the chief’s four commanders, and Li Xiang decided their group would have to attack covertly rather than fight head-on.
• Li Xiang, Kohaku, and Ginro returned to the cave and briefed the others; Senku and Gen noted that Treasure Island held clues to the petrification mystery.
• Li Xiang took the first watch at the cave entrance but could not sleep, so Gen used his pocket watch to hypnotize her.

Li Xiang and Kohaku brought Amaryllis to their cave hideout, where the group planned to investigate the island chief’s harem under cover of night. Kohaku, Nikki, and Ginro secured the Perseus and confirmed their petrified companions were still intact, but avoided moving the Steam Gorilla to keep from alerting the guards.

• Amaryllis told Li Xiang and Kohaku that the island chief forced women into his harem and that she planned to free her friends trapped there.
• Li Xiang and Kohaku brought Amaryllis to the cave, introduced her to the others, and agreed to wait until night to act.
• Kohaku, Nikki, and Ginro sneaked to the coast, knocked out the two guards watching the Perseus, and tied them up.
• The three boarded the Perseus, checked the ship, and confirmed that their petrified companions remained intact.
• Ginro suggested taking the Steam Gorilla and its supplies, but Kohaku warned that starting it would make noise, so they abandoned the plan.

Kohaku, Nikki, and Ginro escaped the coast with the car, laboratory equipment, and the statues of Soyuz and Grandpa Fossil. Chancellor Thorn retaliated by destroying the remaining statues, and Li Xiang urged the cave survivors to stay calm while they had no way to retrieve the fragments.

• Kohaku, Nikki, and Ginro hid from a patrol guard while loading statues into the car, then Ginro drove them through a blockade and back to the cave.
• Senku welcomed their return and prepared to begin experiments with the recovered laboratory equipment.
• After guards discovered the tied-up sentries, Chancellor Thorn ordered the remaining outsider statues smashed and their fragments thrown into the sea.
• Little Watermelon told the cave that the statues had been destroyed, and Li Xiang said they could be repaired with glue but could not go out to retrieve them.

Li Xiang and the others planned to infiltrate the Island Master's harem and assassinate him, while Senku revived Grandpa Fossil and Soyuz. Soyuz revealed that he was Treasure Island's rightful heir and, after Little Watermelon comforted him, resolved to face the future.

• Gen proposed disguising someone as an island girl to enter the Island Master's harem, and Li Xiang and Kohaku agreed the group could use the opportunity to assassinate him.
• Lillian recalled that the next annual selection was still some time away, and the group discussed preparing defenses against the Petrification Device.
• Senku poured Revival Fluid over the statues and revived Grandpa Fossil and Soyuz.
• Soyuz told Li Xiang that he was the son of Treasure Island's former leader, and that his mother had saved him from Thorn's attempt to kill him as an infant.
• Little Watermelon offered Soyuz a flower and encouraged him to look ahead, helping him resolve to rewrite the future.

Lillian smuggled clothes and cosmetics to the cave so the group could disguise themselves for the harem selection. After Kohaku’s disastrous attempt at doing her own makeup and Senku’s forced hair makeover, Lillian finished styling everyone, leaving the group ready for the next stage of their plan.

• Lillian deceived Daran by claiming she was secretly rehearsing for the palace selection, then carried the clothes and cosmetics to the hidden cave.
• Lillian demonstrated how to apply makeup, but Kohaku’s attempt looked so striking that Li Xiang washed it off to avoid attracting attention.
• Lillian pointed out that Kohaku’s hair would look better worn down, so Senku made a natural smoothing conditioner and Kohaku washed her hair with it.
• Li Xiang and Gen Asagiri restrained Senku and washed and combed his hair, leaving him embarrassed by Li Xiang’s praise.
• Lillian applied individualized makeup to the group and finished everyone’s makeover after most of the day.

Li Xiang, Kohaku, Ginro, and Lillian disguised themselves as women and entered the island’s harem selection. After passing the screening, they were escorted to secluded lodging in the harem compound, where Li Xiang waited for nightfall and hoped their plan would succeed.

• Lillian finished dressing Kohaku, Gen Asagiri, Nikki, Ginro, Senku, and Li Xiang, and everyone admired Li Xiang’s appearance.
• Senku reminded the group to keep their disguises convincing, and the group chose Li Xiang, Kohaku, Ginro, and Lillian to enter the selection.
• Li Xiang, Kohaku, Ginro, and Lillian reached the village square and passed the screening for the harem selection.
• Guards escorted the selected candidates to secluded huts in the harem compound and warned them not to leave their rooms or make noise after dark.
• Li Xiang ate dinner, opened her window beneath the moonlight, and silently prayed for the group’s safety.