After Losing His Job, He Was Recruited by Ark as an Operator

The hard-working "cleaner" Zhao Cheng was stunned by a phone call just after his performance sank to the bottom of the river. "Youlin has been disbanded..." Jobs are smashed and life goals evaporate in an instant. Just as the down-and-out killer was about to bid farewell to the shadows and "come ashore," in the darkness, a pair of blood-onyx red pupils locked onto him. The countdown to doomsday has quietly started, and the world is undercurrent. A mysterious golden recruitment scroll drew him into the whirlpool of "Ark Pharmaceutical". The fallen city where disaster beasts are rampant, the inhuman might of the Empire's executive officers, the steel torrent of Federation mechas... The novice copy is actually a preview of the doomsday! Holding the dagger "Lete's End" in his hand and carrying the soul of an assassin, Zhao Cheng is licking the long-lost excitement. When the world-destroying flood is approaching, he chooses to become—— Ark operator, Zhao Cheng. Ride the waves and tear apart the apocalypse!