The Ragnarok System of the Desperate Reincarnated Demon Lord and the Seven Aggressive Maidens

Rintarou, a renowned hero who helped save Japan from being overrun by demonic monsters, has become a socially awkward university student! Though he still has his incredible abilities, there's one thing he doesn't have—a girlfriend. But one day, a princess suddenly approaches him and asks to be his wife, his girlfriend... or even his friend with benefits...?!