How Did an Apocalypse Become a Reverse Harem?

Simultaneous dimensional rifts. Monsters pouring into the world.

As humanity stumbles toward extinction in total chaos,

Doya is living a strangely comfortable and safe life inside a bunker, thanks to a system that appeared for her right from the start.

“W-Who are you?”

That peace lasts right up until four tall, ridiculously good-looking men suddenly show up in front of her.

[The game scenario has changed from ‘Disaster Simulation’ to ‘(Adults Only) Romance Simulation.’]

[All capture targets have been encountered! Main scenario will auto-progress once conditions are met.]

She plans to humor them briefly and send them on their way. Easy.

Except… for some reason, she’s certain they won’t hurt her.