Doomsday: I'm strong, so it's okay to have a few more goddesses, right

[Apocalypse + storage space + no virgin + decisive killing + multiple heroines] When all the survivors kept hiding and trembling in fear every day, Mu Chuan, who had a system, was hunting everywhere, Constantly strengthen yourself, have the power to run rampant in the last days and blow up everything... (hello this is not my book I'm just translating it so I hope y'all enjoy)