Should I Really Not Have Listened...?

Kei and Shouma have a winter-summer romance going on and have been dating for six months. The first three months were great! But then Kei, 43, started to treat university student Shouma like his son, and before Shouma knew it, they hadn't been intimate for three months. One day while grabbing a coat from Kei's closet, Shouma finds something. That something is about to transform his life and relationships in more ways than one…