Characters: Ippongi Kazushi (father), Ippongi Musashi (son), Ueda-sensei
Ueda is a sensei in a school. Young Ippongi Musashi is one of his students. All the teachers except Ueda-sensei treats him with a detachment because his father Ippongi Kazushi is a yakuza member. But he's a sexy looking yakuza member and Ueda sensei is gay so he fell for him the instant he saw him. That turns out to be a match :3
Houkago no Love Call