Kojirase Tensei Maou to 7-nin n Oshikake Otome no Ragnarok System

Novel

Shadow Blaze is the hero who defeated the demons that invaded Japan and terrorized the people. Now living peacefully as an ordinary university student under the name of Rintaro Hotsugi, he laments the fact that he has never been able to find a girlfriend. The story begins one day when a beautiful girl appears in front of him and says, "You saved me once."