Yoshizou Tada

A perverted old man who has an enormous pornography collection that he amassed during his stay in the hospital. He advises Yichi to go after Rika if he loves her because he will later regret it if he does not. Tada then says that he was stupid and lived a life of painful regret because he did not go after the person that he loved. Upon his sudden death he offers his last will to Akiko which is to pass his porno collection on to Yichi. Wikipedia