Isekai de Kojiin wo Hiraita kedo, Naze ka Darehitori Sudatou to Shinai Ken

Sinopsis

Masatsugu was brought from another world in a hero summoning and ended up being part of the lowest possible caste. Awaiting this boy, who possess nothing but elementary skills, is managing an orphanage full of beautiful girls! But, his annoying days are just starting as he finds the building in ruins, and he also has t…