Tarou Amanatsu

Rui's childhood friend and next door neighbor
in the begining of the series Rui always goes into his bed in the morning. He has had a crush on Rui since the beginning, yet he doesn't tell his feelings until later. He tells Rui that he can wait until final exams are over yet tells her to forget it. Later Rui tells Tarou that she would like to go out with him. While their dating, Eiuske comes back and Tarou keeps telling him that he will not give Rui to him, and drags her away everytime their with Eiuske. At the end of the series Rui breaks up with Tarou, but he tells her that he will not give up.