

A global flood forces 7 billion people into an ocean survival game. Calvin starts with nothing but a broken plank, but then awakens the hidden class: Legendary Mechanic. While others scramble and flee, he upgrades and rebuilds. Scrap wood, iron, crystal cores, broken weapons—everything can be reforged. From a lone drifter to the king of the sea, Calvin will turn that single plank into an aircraft carrier bound for the Ark Continent.

Gerald Culley transmigrates to a weapons factory in the early days of the nation’s founding, witnessing the legendary general inspiring everyone to develop a domestically-produced Multiple Rocket Launch System (MRLS).Shocked to find himself in the past, he remembers his past life’s love, Carolyn Thomas, and her sacrifice, and vows to change history. Through his unwavering determination and deep understanding of weapons development, Gerald earns the general’s recognition. He and Carolyn form a research team and embark on the grueling path of creating weapons that will defend their nation.

Captain Anthony Cole is humiliated by Director of Flight Operations Liam Carter, also Anthony’s mentor’s son, for his “outdated” techniques and demoted to flight attendant. New captain Tristan Hart relies entirely on automated systems,ignoring manual checks and creating hidden dangers. Anthony discovers a critical malfunction but is mocked. Despite financial pressures at home, he swallows his pride and stays on the flight. After takeoff, ground crew discovers missing screws, but the plane has already reached cruising altitude. Mid-flight, the aircraft suffers catastrophic failure—the outer shell tears off, causing violent turbulence. Anthony recommends an emergency landing, but Liam blocks him. As the crisis escalates, Anthony forcibly takes control and identifies the only viable landing site: a racing track in Tinhen. Liam tries to stop him again, prompting the head flight attendant to angrily condemn his ignorance. Using his decades of experience, Anthony executes a harrowing emergency landing on the racetrack, saving everyone aboard.

When the apocalypse hits, time-traveler Finn gets stabbed in the back by his fiancée and his friend. Then he unlocks the Plant Summon System. These plants grow clean and stand guard over the base. While everyone else fights for scraps,Finn levels up in chill mode. With Cherry Bomb and Doom-shroom, he wipes out zombies like mowing grass. He recruits powerhouses, wins hearts, crushes the Zombie Queen, and goes head-to-head with Dr. Corpse. In the end, he turns Caelum into humanity's last beacon, saving the world without breaking a sweat.

The alien bugs invaded, and humanity retreated to the "Ark" mobile fortress. Four years ago, hero Kevin piloted the mech "Silver Scar" to defeat the swarm, but retired after his entire squad fell. When the bugs returned, Kevin reapplied—only to show 0% compatibility. Spy Marshal Sam framed him for treason, sentenced him to death, and sent his mech to the scrapyard. As the swarm breached the gates and Kevin faced execution, "Silver Scar" self-activated, rescued him, and synced at 100%. Kevin repelled the swarm, and the whole city witnessed the war god's return.

Modern-day gamer Leo Kane dies suddenly after an all-night gaming session and wakes up in another world as Grecan's most feared assassin, Cipher. Upon awakening, he's hired by Imperial Guard officer Hugo Spence to kill a woman named Lady Brooks. Intending to take the money and slack off, Leo's plan collapses when he's captured by his target, Poppy Brooks, who discovers his assassination mission. After Leo bravely drives off a group of bandits, Poppy's view of him changes. When she later learns that Leo once saved her life, their relationship begins to thaw, sparking a bond neither expected in a world built on blades and secrets...