The Ragnarok System of the Desperate Reincarnated Demon Lord and the Seven Aggressive Maidensこじらせ転生魔王と７人のおしかけ乙女のラグナロク・システム; Kojirase Tensei Maou to 7-nin no Oshikake Otome no Ragnarok System

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, theres one thing he doesnt havea girlfriend. But one day,a princess suddenly approaches him and asks to be his wife, his girlfriend...or even his friend with benefits?!