Ossan's Love(2016)

Soichi Haruta is 33 years old, single, and works in a company's product development division. He wants to get married, but he isn't popular with women. One day, he finds his senior at work, Musashi Kurosawa, saving a lot of his pictures on Musashi Kurosawa's cell phone. Soichi Haruta is scared. One day, Musashi Kurosawa confesses to him that he likes him.