Chapter Summaries

Cheng Yu handed control of the coming defense to three Co-Linked Wisdom units as the Deep Sea Empire advanced with a four-million-strong vanguard. The enemy began its attack at the Far North Coast using shell formations to shield its troops, while another force approached the Eastern Shore Cliffs.

• Conductor explained that the enemy would attack along the entire front, and Cheng Yu entrusted the battle’s overall control to Conductor, Performer, and Artist through Co-Link.
• The system described the costly 0-6 models and reported that Cheng Yu’s army included more than five million 0-1 units, two million 0-2 units, and smaller groups of higher models.
• The Merfolk King learned from Old Jimmy that the four-million-strong vanguard was commanded by Old Jimmy’s son, Donny, whose mission was to clear a path and absorb enemy ranged attacks.
• Steel Main City detected the Deep Sea Empire’s forces approaching from the north and east and warned that they would reach Cheng Yu’s border in twenty minutes.
• Donny sent part of his force toward the Far North Coast and led the rest toward the Eastern Shore Cliffs, hoping to surprise the defenders.
• At the Far North Coast, shell formations shielded the advancing troops from the 0-5 Shuttle Fighters’ laser attack, and Cheng Yu grimly watched the shell-covered sea.

Cheng Yu’s forces used coordinated fire to inflict heavy losses on the Deep Sea Empire’s landing army, but Naga Mage support and the empire’s resilient Shell Demons helped the invasion push past the first defensive line. As his troops withdrew to the Small Plain, an alarm reported a second enemy landing in the east.

• Berserk Murlocs emerged from a shell island and advanced across the Far North Coast, shielding themselves with their arms and fallen comrades as the 0-5s attacked.
• Cheng Yu’s concealed 0-3s and overhead Shuttle Fighters struck the Berserk Murlocs on the slopes, killing hundreds of thousands before Shell Demons formed a regenerating defensive line.
• The 0-3s, 0-4s, and 0-2s countered the Shell Demons and the Deep Sea Empire’s advance, but the empire’s larger army received protection from a magical water barrier cast by Naga Mages and Merfolk Mages.
• Cheng Yu’s surviving forces withdrew from the breached first defensive line to the Small Plain, where he had concentrated most of his troops.
• An alarm warned Cheng Yu that enemy forces were landing in the east.

Donnie’s attempt to land on Longli Mountain and flank the Northern Borderlands Plain failed against Cheng Yu’s defenses, so he led his army north. As Donnie arrived to join the ongoing battle, a Human Summoner Squad secretly left Twilight Fortress and entered the Duwu Great Forest.

• Donnie hurled a Giant Turtle Beast toward the cliffs so his troops could climb onto shore, but Cheng Yu’s forces repelled their landings with concentrated fire.
• Cheng Yu’s defenses wiped out thousands of Naga Warriors, and Donnie abandoned his eastern landing plan and headed for the Far North Coast.
• On the Northern Borderlands Plain, Cheng Yu’s forces continued repelling waves of Deep Sea Empire troops while Cheng Yu stockpiled energy.
• After five days of fighting, Donnie arrived on the Northern Borderlands Plain, eager to join the battle.
• A Human Summoner Squad left Twilight Fortress, crossed the Wild Duckweed Grasslands, and entered the Duwu Great Forest.

Cheng Yu’s Purger Legion fought the Deep Sea Empire’s million-strong vanguard, while Donny ordered a forbidden summoning ritual to strike the enemy’s ranged units. The ritual was disrupted at great cost, and Cheng Yu ended the battle by relying on melee forces as he awaited the reward Yog promised.

• Donny arrived at the Far North Coast, learned his army had lost over a million troops, and ordered a renewed assault after sunset.
• The Deep Sea Empire charged the Purger Legion, whose units inflicted heavy casualties with piercing beams, drills, and thermal cannons.
• Donny ordered the Merfolk Mage to use fallen soldiers as sacrifices for a Grand Summoning Spell, despite imperial law forbidding it.
• Cheng Yu spotted spatial fluctuations above the 0-2 positions, and the Wisdom units disrupted the summoning by destroying a Short-Range Space Jump Gate as a Silver creature emerged.
• The mages suffered backlash and the fish head was destroyed, but Cheng Yu’s forces spent heavily and lost many units, so he shifted to melee combat.
• Yog told Cheng Yu he would receive a reward that would satisfy him, and Cheng Yu eagerly welcomed the promise.

Cheng Yu watched the Purger units adapt to the Naga Warriors and learned how the RTX Destroyers had once devastated the Wizard Civilization. As the Merfolk King arrived at the Far North Coast to lead the night assault, Steel Main City identified him as an extremely dangerous Silver Creature.

• Cheng Yu saw the Purger 0-1 units improve their tactics against the Naga Warriors, and the system explained the RTX Destroyers' adaptive combat methods and their costly victory over the Wizard Civilization.
• Cheng Yu resolved to wait for the enemy's main force before launching his counterattack and continued searching for the person connected to the fragments.
• A force of six million organisms approached the Far North Coast, while the Merfolk King ordered his forces to rest at Shallow-Sea Beach before attacking that night.
• The Merfolk King confronted Donny over his illegal summoning ritual and ordered him to lead the coming charge, with twenty lashes if he survived.
• At night, the Merfolk King arrived at the Far North Coast and inspected the Purger army, while Steel Main City detected him as a Silver Creature and issued an extreme-danger alert.

Cheng Yu used mass kinetic bombardment to devastate the Deep Sea Empire’s army and force the Merfolk King to agree to peace. With the Northern Borderlands threat contained, Cheng Yu prepared to move south, using his ally’s conflict as a pretext.

• The Merfolk King sent the Sea Folk army against Cheng Yu’s forces, while Old Jimmy agreed that Cheng Yu’s army lacked high-tier combat power.
• The Merfolk King sent three thousand Naga Mage-Warriors to disrupt Cheng Yu’s long-range attacks, and Cheng Yu launched Shuttle Fighters as kinetic bombs at the Sea Folk army.
• The bombardment killed Donny and most of the Sea Folk forces, leaving the Merfolk King with only a handful of survivors; he ordered a retreat.
• Cheng Yu told the Merfolk King that the two sides could coexist peacefully and showed him three million Shuttle Fighters, persuading him to withdraw from the Northern Borderlands.
• Cheng Yu prepared to consolidate his resources and head south, while the story revealed that Ryan had recorded the battle and gone to meet his uncle Kadrian at Twilight Fortress.

Kadrian sent five hundred thousand Kurland Kingdom troops toward Cheng Yu’s headquarters after viewing evidence of the Deep Sea Empire’s forces, but Cheng Yu had already driven the invaders back. Kadrian withdrew after speaking with Cheng Yu, while Yog asked what Cheng Yu would do next on his path to making an enemy of the world.

• Kadrian watched the Recording Stone’s footage, judged Cheng Yu’s forces a threat, and dispatched five hundred thousand troops toward the Monster Forest.
• Cheng Yu earned the Flabby Fishbane achievement, converted it into currency, and raised his balance to 900,000.
• Cheng Yu confronted the approaching Kurland army and challenged its right to enter allied territory without permission.
• Kadrian projected himself before Cheng Yu, claimed he had come to help against the Deep Sea Empire, and ordered his troops to return to Twilight Fortress after learning the invaders had been driven back.
• Cheng Yu recognized that Kadrian had been cautious and opportunistic, and Yog asked him what he would do next as an enemy of the world.

Red sent troops and equipment to Twilight Fortress at Kadrian’s request, while Kri resolved to pursue his own plan for the kingdom. At Steel Main City, the Conductor urged Cheng Yu to move the base into space to protect him from a likely Deep Sea Empire strike.

• Yog told Cheng Yu that he was on the path to becoming the world’s enemy and warned that the world’s climax was approaching.
• Red approved Kadrian’s request for reinforcements despite his eldest son Kri’s objections, explaining that the Black Forest Family depended on Kadrian’s strength.
• Kri left Red intending to prove that he alone could lead the Kurland Kingdom and restore the Black Forest Family’s greatness.
• Kadrian inspected the reinforcements at Twilight Fortress and judged that the troops and equipment would serve as a useful reserve while he prepared the fortress for attacks from either direction.
• The Conductor assessed that the Deep Sea Empire was likely to send an elite force against Cheng Yu and recommended moving Steel Main City into space.

As Steel Main City rose toward near-Earth orbit, Cheng Yu learned about past commanders, the Reforgers, and Lin Mo’s failed attempt to replace Yog. Yog promised Cheng Yu a chance to open the Door of Ultimate Extremity, while Grete decided to use Cheng Yu to learn more.

• Steel Main City began rising into the sky, and Conductor assured Cheng Yu that the city would remain near Earth and protect its inhabitants.
• Conductor explained that Reforgers had been deployed three times to retrieve seeds, describing the destruction or defeat of their recipients and armies.
• Yog confirmed that Cheng Yu was an honest, well-behaved choice and said Lin Mo had become a Mythic Gray Fog monster after trying to replace him.
• Yog told Cheng Yu he would have a chance to open the Door of Ultimate Extremity as a reward, and Cheng Yu watched the continent shrink below the city.
• Grete, confused by the conversation, decided Cheng Yu would be his way to gather intelligence, while Yog watched him with mockery.

After Cheng Yu’s victory over the Merfolk King’s ten-million-strong army, the continent’s major powers assessed the Northern Borderlands and considered how to respond. While leaders prepared for possible war and maneuvered around Yuri Constantine, Cheng Yu slept in the Steel Main City, unaware he had become a figure of continental importance.

• Karen VI reviewed reports of the Northern Borderlands’ victory and decided to investigate Cheng Yu’s mysterious power.
• Lundo and Frank informed the Xipu Federation Council that forces were gathering near Twilight Fortress, and the First Seat assigned them to monitor Yuri Constantine and his army.
• Lanchi told the Abyssal Pope about the victory, and the Pope planned to help the Prince while treating Constantine’s use of the surname as heresy.
• Edwin Orc’s teacher and the clan chieftains pledged to follow him, strengthening Edwin’s resolve to lead the Orcs to glory.
• Brittany resolved to keep the coming conflict away from the Elves’ Land of Life.
• Cheng Yu slept in the Steel Main City, unaware that the continent’s leading powers had begun taking notice of him.

Cheng Yu prepared his army for a surprise attack on Twilight Fortress after the Research Institute's Central Processor was connected to the Main City. As the attack began, Old Michael tried to protect the soldiers on the first defensive line, while Cheng Yu resolved to face the cost of fighting humans.

• The Research Institute's Central Processor was installed in the Main City, allowing Cheng Yu's army to keep operating while airborne.
• Cheng Yu trusted Conductor to plan the march south and approved a surprise attack on Twilight Fortress that night.
• Old Michael disciplined Jizo during watch and secretly treated the young soldier with extra warmth because he reminded him of his younger self.
• Old Michael noticed the forest had gone silent and ordered Jizo to alert the conjurer, but a white ball of light struck the wall and killed several soldiers.
• Old Michael ordered the soldiers to get behind the wall as Jizo panicked and stumbled toward the watchtower.
• Cheng Yu watched the attack through the Satellite and resolved to bear witness to the defenders' courage as his army fought them.

An unfamiliar army of spiderlike machines attacked the fortress, overwhelming its defenders as the general ordered a desperate stand. As the magical barrier weakened, he sent his son to warn the Prince, then stayed behind with the remaining soldiers and an old Mage.

• Jizo woke the young Mage and rang the alarm as the 0-1 army attacked the fortress walls.
• The general ordered the Guard Corps and Mages to defend the wall while the 0-3s shot down Magic Cannonballs and pierced magical shields.
• The general sent his son to Twilight Fortress with a warning, and father and son quietly admitted their pride in each other before he left.
• After the Magic Crystals ran out, the general ordered the Mages to retreat and rallied the remaining soldiers to keep fighting.
• An old Mage stayed behind to help the general, who faced the advancing 0-1s and called them to attack.

Jizo survived the fall of the first defensive line and helped Old Michael defend the upper levels as the Purifier 0-1s overwhelmed the fortress. After Old Michael secretly sent Jizo away with a teleportation scroll, Cheng Yu learned that Kadrian Blackforest was an exceptionally dangerous enemy and that his forces planned to break through several defensive lines before confronting him.

• Jizo climbed to the upper levels, where Old Michael put him to work loading shells as the Guard Corps struggled to hold back the Monsters.
• The old Mage sacrificed his life to stabilize the magic barrier, but the general died as the survivors retreated to the third level.
• Old Michael gave Jizo a Teleportation Scroll and money, told him to flee and conceal what he had witnessed, then led the soldiers against the Monsters when they broke through.
• Jizo tore the scroll and vanished while Old Michael charged into the fighting, privately deciding to regard him as his son.
• Cheng Yu asked Conductor why the other series had not joined the assault, and learned that the enemy's surveillance magic made concealing their capabilities important.
• Cheng Yu learned that Kadrian Blackforest was the Undying Prince and accepted the plan to break through as many defensive lines as possible before building strength for a final attack.

Kadrian watched Cheng Yu’s forces advance through Twilight Fortress and concealed the first defensive line’s defeat by killing the messenger who reported it. The Purger Army broke through three defensive lines in under three hours and continued toward the fourth.

• Kadrian monitored the first defensive line, then killed a young guard who reported its fall and ordered the defeat concealed as a total annihilation with no survivors.
• The Purger Army attacked the second defensive line, whose barrier failed after its magic power crystals disappeared, allowing professionals to flee while the remaining soldiers were exterminated.
• The third defensive line’s commander prepared for the attack, but the 0-3s’ Piercing Beams breached its barrier and their Explosive Beams inflicted heavy casualties.
• The third line’s commander ordered a retreat to the fourth defensive line, and most of his troops escaped while Cheng Yu’s forces pressed onward.

Cheng Yu’s army reached Twilight Fortress’s seventh defensive line, where the commanders chose to fight rather than retreat. Two kinetic strikes destroyed the line but left the mountain pass intact, giving Cheng Yu control of seven of the fortress’s twelve defensive lines.

• Conductor told Cheng Yu that Kadrian had probably concentrated the enemy forces at the seventh defensive line and outlined two strategies for eventually defeating him.
• Cheng Yu chose to pursue the personal Titan option after learning about Titans and the history of RTX Destroyer from the system.
• The commanders gathered at the seventh defensive line rejected surrender and decided to fight after the seventh commander warned that retreat would mean certain death.
• Conductor, Performer, and Artist debated whether to reveal the army’s kinetic-strike capability, then approved launching two Shuttle Fighters from a Purger 0-5.
• The two kinetic strikes destroyed the seventh defensive line, and Cheng Yu captured seven of Twilight Fortress’s twelve defensive lines.

After the Deep Sea Empire suffered devastating losses from a deity-level attack, Cheng Yu prepared to face an approaching squad of assassins while the empire’s rulers debated how to respond. The Naga Queen and Merfolk King agreed that the empire’s Senate needed to understand the enemy’s power, leaving a larger confrontation looming.

• Kadrian surveyed Twilight Gorge and found the first seven defensive lines destroyed or devastated, then resolved to hold the remaining lines.
• Cheng Yu learned that the Conductors had fired two Space-Based Weapons to buy the legion time, then identified 3,000 approaching Deep Sea Empire assassins and sent troops to intercept them.
• Cheng Yu considered the strengths and costs of the Purger and Annihilator series before deciding to monitor the approaching Octopus Assassination Squad.
• The Merfolk King returned to the Deep Sea Empire battered and without his crown, prompting the Naga Queen to suppress the uproar over his crushing defeat.
• The Merfolk King told the Naga Queen that a weapon had injured him and that the enemy possessed over a million weapons with deity-level destructive power.
• The Naga Queen proposed letting the Senate confront the enemy’s strength, and the Merfolk King reluctantly agreed.

The Senate sent an Octopus Assassination Squad to investigate Constantine, and the squad massacred a village in Duwu Great Forest while seeking information. Cheng Yu arrived too late to save the villagers, destroyed the squad with ten 0-5s, and vowed to make the Deep Sea Empire pay as he prepared to use a powerful weapon.

• The Naga Queen silenced the Senate and won approval to send its Octopus Assassination Force to investigate Constantine and his strength.
• Cheng Yu watched the Octopus Assassination Squad cross into Duwu Great Forest, where its commander sought information from the human bandit village.
• Jack admitted what he knew about Constantine, but the octopus commander ordered the squad to kill the villagers and brutally tortured Jack.
• Cheng Yu dispatched ten 0-5s, but they arrived after the octopuses had slaughtered the village and killed Jack's wife.
• Cheng Yu used the 0-5s' sonic weapons to disintegrate the Octopus Assassination Squad and the village, while Jack shouted his loyalty to Constantine.
• Cheng Yu vowed to make the Deep Sea Empire pay and told the system he would use that thing.

Cheng Yu used an enhanced Carbon-Based Virus to infect the Deep Sea Empire’s aquatic population, turning its cities into nests of nearly unkillable monsters. As the empire’s rulers gathered to respond and more cities fell, Cheng Yu earned a Silver Five-Star achievement and converted it into a fortune.

• Cheng Yu enhanced the Carbon-Based Virus with the Source of Augmentation, making it infect aquatic creatures up to Bronze Three-Star and transform them into nearly unkillable biological weapons.
• Cheng Yu sent Conductor to release the virus over a Deep Sea Empire city, where it infected the Sea Folk and turned the city into a nest of monsters.
• The Naga Queen and Merfolk King watched the city’s Legendary administrator die and realized Constantine’s power was more terrifying than they had expected.
• The Naga Queen and Merfolk King summoned the empire’s decision-makers as reports arrived that several more cities had fallen.
• Cheng Yu unlocked the Silver Five-Star Apostle of the Supreme Mother Goddess's Gospel achievement, converted it into currency, and discovered his balance had risen to 1,900,000.

The Deep Sea Empire evacuated its elite fighters as mutated Sea Folk overwhelmed its capital, while Cheng Yu received the Golden Title "Deep Sea Slaughterer." The title’s curse drew the attention of a being embodying the sea, but Yog’s Door Seal blocked its attempt to reach Cheng Yu, and the being’s mass of water ended up in the Chaos Sea.

• A young merfolk advised the Merfolk King and Naga Queen to evacuate along a route based on the mutations’ spread through ocean currents, and the Merfolk King put him in charge.
• The Naga Queen and Merfolk King led the evacuation of the Deep Sea Empire’s elites to the Naga Empire as hordes of mutated monsters attacked the Royal Capital.
• Cheng Yu received the Golden Title "Deep Sea Slaughterer," whose effects made aquatic species hostile and fearful toward him and increased his damage against them.
• The title’s final effect triggered a system error when a being embodying the sea tried to reach Cheng Yu, but Yog’s Door Seal blocked it and nullified the curse.
• Cheng Yu assigned the title the role Slacker Killer, while Yog watched as the being’s mass of water appeared in the Chaos Sea.

After the Deep Sea Empire fell to Constantine, the Merfolk King sent recordings of its destruction to the continent’s powers and urged them to unite. Their leaders and representatives gathered in the Naga Empire, where the Keynes Continent Joint Conference officially convened.

• In the Final Void, Yog reconnected with his true body and considered how his interference was affecting Origin and the new era’s laws.
• Phil learned that the Deep Sea Empire had fallen, and the Merfolk King sent recordings of its destruction to leaders across the continent to seek revenge and warn them about Constantine.
• Karen VI ordered Help to represent the Karen Empire at the Naga Empire gathering, while the Abyssal Pope summoned Luthers and asked him to remain by his side.
• The Xipu Federal Joint Council agreed to attend, and the chief councilor assigned Rust to accompany him while Lundo oversaw the federation.
• Kadrian traveled from Twilight Fortress to the Naga Empire, and the Beast Emperor and Elf Queen also chose to attend.
• The leaders and representatives of the continent’s powers arrived in the Naga Empire, officially convening the Keynes Continent Joint Conference.