In the Apocalypse of Torrential Rain, Choose Two of Nine Abilities from the Start

Torrential rain + apocalypse + special abilities + pocket dimension + water ghosts + ruthless and decisive + no naive do-gooder

The melting of the polar ice caps and relentless, torrential rain caused seawater to flood ninety percent of the world's land.

Liu Feng, a university student, learned of the apocalypse in advance. From the start, he got to choose two of nine special abilities, and decisively picked space-time powers and a portable micro-world.

No rebirth, and no idea what to do about the apocalyptic disaster?

No problem. Shen Mengyao, a rich heiress reborn from the future and looking for a powerful backer, has already come knocking!

No money to stock up on supplies?

No problem. The rich heiress has already stocked up.

No shelter?

No problem. The rich heiress has already built one.

The blurb can't do it justice. Please read the story.