The Reborn Apocalypse Hoarder

In his past life, Chase was fed to a deep sea leviathan by Giselle. Reborn before the flood apocalypse, he binds to a Noah's Ark System. He forces Giselle to hoard supplies. After the flood, Chase summons the Ark, awakens his Lightning Superpower, gains combat capabilities, and eliminates mutated enemies. Giselle repeatedly colludes to hunt him down. Chase kills Giselle and Great Khan. He summons the Sky Citadel to shelter survivors, building a post-apocalyptic utopia.