This is a story about the relationship between two people living together and how it changes a little after one of them realized the other one might be moving out. * They're switching.
Naoto met Tomoyuki at his wife's workplace BBQ and had an affair with him. Even though he knows he's still attracted to Tomoyuki, he tries to distance himself out of guilt—but when they meet again, he can't resist his desire for Papa Tomoyuki...!