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 to pay off the huge debt the former director left! And that’s not all, he has no time to rest from all the scumbags threatening the orphanage! Will Masatsugu and the orphans be able to protect their precious home?

Mihama Ariake was an adventurer who was fired from the hero's party for being weak despite playing a critical support role. But he was actually forced to be an adventurer and was happy to be kicked out. He then saves a cute dragon girl from an evil wizard and it turns out the saintess of the hero's party is in love with him. Ariake now proceeds to enjoy his perfect adventuring life with a party of cute girls.