has become an unsolved mystery. A cheerful boy who dreams of becoming a paramedic, Ayumi falls for Mamoru quickly when he offers to take her to the nurse. Although he is in Ayumi's class, Ayumi only realizes that he is in fact Misao's younger brother a day after she meets Misao. He is somewhat taken back by Ayumi; he believes she is more fearsome than she may appear. Furthermore, despite Ayumi's feelings, Mamoru has a crush on his next door neighbor Misaki Yamamoto. Misaki sees Mamoru more as a little brother than anything else. He later runs away with Kusuda and Sogabe after Misaki turns her down. He later has a change of heart after realizing he made Ayumi cry due to his actions. Etsu is an unattractive, short, quite dense and perverted friend of Mamoru's. He has a talent of putting girls to sleep with lame puns. He does not see much in Ayumi (though he wanted to see her in a cheerleader outfit), but he is very interested in Misaki--he is nearly obsessed with her. He seems undaunted by Kei's good looks, and with his "Kappa-like" face, they tend to bicker a lot. It is clear that he has more feelings for Kei than he lets on. He runs away from home with Mamoru and Sogabe because he regrets saying he hates Kei. In the end, he confesses to Kei and finds his feelings reciprocated. A member of the tennis club at school, Terai has little athletic ability. However, with Dobashi's assistance, he manages to become a somewhat decent athlete. During that time, he has fallen for Dobashi, but due to her (inadvertent) teasing, plus the fact that she avoided holding hands with him (to which she revealed that she found it embarrassing to do so), he is unsure of their relationship. Eventually, he gets a kiss from Dobashi, which affirms their relationship. A friend of Kusuda, Hiroyuki is a bit of a delusional character, as well as a little narcissistic. He likes Nao and tries to get close to her to create an opportunity for her to confess to him. He shows his insecurities when Nao shows interest towards Yukito Renjou, an artist and graduated student from their school. He runs away from home because of this (although only for two days) with Kusuda and Mamoru. After he loudly conveys his feelings towards Nao such that she