This is the R18 version which includes adult sex scenes!

"There are times... when even I cannot hold back."
Koya is a university student working part-time as a male housekeeper when he visits the Naruse household.

After meeting Keiichi Naruse, a single father and his son, Ichika, Koya finds Keiichi very sexy.

That's when Koya realizes that he is "supposed to be straight." As he learns about Keiichi's frustrations, Koya unintentionally gives into temptation...

Even though Keiichi has a child, he's just too irresistibly sexy...!