Asahi is a graduate student who suddenly had to take care of his older sister's child, Masaki.

While shopping for dinner in a supermarket, troubled by his tight living expenses, he coincidentally met and received assistance from his childhood friend, Nishino, who he hadn't seen for 6 years.

The family of 3 men just happened as they went with the flow, but somehow Nishino's skinship is crossing some lines? "No, you can't! There's a child watching us?!"