Apocalypse Abyss: Revenge Through My Space

Betrayed and drowned by his girlfriend and her rich lover during a world-ending flood, Lin Fan awakens one month in the past—with a spatial storage ability and a thirst for vengeance. Armed with foreknowledge of the coming apocalypse, he maxes out loans, mortgages everything, and secretly hoards billions in supplies. When the floodwaters finally rise and civilization collapses, Lin Fan stands ready. This time, those who betrayed him will beg for mercy he'll never grant.