Daily life of Saitama, Oh! And A Monster Girl Too

Saitama finds himself in a strange land where there are monsters that roam alongside humans and don't attack them. Strange first sight sure, but atleast they aren't harming anyone. So no need to intervine. There is one problem though. He has to take care of one. Now he has two mouths to feed and take care of. Well.. it shouldn't be problem for a poor hero...wait a second it will