Mitsui is a student of Hikarizaka Private High School. She talked with Fuko for a bit during the school's entrance ceremony before her accident. Though she remembers Fuko, she refuses to accept Fuko's starfish sculpture gift and request to go to her sister's wedding, since she is a senior and is busy with entrance exams. This hurts Fuko's feelings. In The Older and Younger Sister's Founder's Festival, she finally accepts Fuko's gift after seeing that she continued to give them out to people. She then promises to go to Fuko's sister's wedding if it was after her exams. This cheers Fuko up. In The Wind That Vanishes Into Dusk, however, Mitsui, like most people, starts to forget about Fuko. She thinks Tomoya and Nagisa were playing a trick on her when they try to make her remember Fuko. In Until the End of the Dream, she finally remembers Fuko and her sister's wedding, and came to the wedding to celebrate it.
Hotori is a very quiet girl, the one usually encountered outside school hours in the club room of the Art Club, where she is working on a very special picture for them. It is very sensitive, for that matter and I want to show it to anyone before it is completed. That it focuses as retreats, has a serious side: She lost early her mother and a few years later, her father announced to want to marry again, she felt shunted into the sidings and began to rebel, as she went into bad company and pretended she was already grown up. Long nights hanging out with her ​​fake friends and drinking eventually led to a tragic and traumatic experience for them, since it shows an immense fear of men. The only exception is the art teacher Shimotsuki-sensei, in which she has even fallen. Across from him, they would open again when he would return her feelings for.
Chitose was always in love with Haruhiko, the ex of her sister Mariko, and as she is now three years later met and it is evaluated teacher at her school, she pulls himself together and confesses her feelings. Henceforth they lead a secret, very passionate relationship. Since Chitoses parents often are not at home, she spends her time in increasingly Haruhikos apartment. Their biggest concern is that he might be tired of her, so she assured him repeatedly that she belongs body and soul to him and every time he gets the hoped-for confirmation that it is the only one for him. However, she slips further and further into a dependence into him over because she is ready to really do anything for him, and to let others do to themselves and Haruhiko exploits this fact for themselves. Even at the school Haruhiko can not stay away from her, even though the risk of being discovered, is particularly great here. Especially Chitose heard as a star of the swim team to the more familiar faces at their school. Supervisor of the swim club is just Tagami-sensei with the Chitose goes extremely well, which is himself in love with Haruhiko what Chitose knows nothing.
Tagami-sensei is a teacher colleague of Haruhiko Shimotsuki. She teaches and supervises the sport swim team, the Chitose Misawa listened as most powerful of the team, which is why she works with her ​​very closely. Shimotsuki she is likeable from the beginning and as time grows that affection, but when she witnesses overheard him and Chitose in the shower to the pool to have sex, it puts her a stab to the heart, because they become even strong feelings for him cherishes. She is torn, how to behave towards him now is, but ultimately wins the passion the upper hand and it goes a physical relationship with him, even if it means conditions is that they comply with deeply ashamed. Gradually, she slides down in the same dependence that binds already Chitose Haruhiko.
Haruhiko takes a new job as an art teacher, at first only part-time. At school he meets Chitose, the younger sister of his ex-girlfriend Mariko, again, that he admits to being in love has always been in him. A major risk is associated with this, to form a relationship with one of his students, he nonetheless agrees to the plan. In general, he is an affable, empathetic young man, but in bed, he shows a different side of himself. Which makes his character is more dominant and he finds pleasure in Chitose to bring in humiliating situations, later calls even as his slave. Where she also insists that she belongs to him alone, and he will deal with it as he pleases. Although he says the vows, he finds in Tagami-sensei short time later, another person who would be willing to engage in this kind of relationship, and now he has Chitose collected so far that they even eventually agrees.
Akagi-sensei is a strong advocate of discipline at the school and gets frequently violently with students for violations of school rules together, and there were only trifles like running in the hallways. Sometimes it does it even afterwards sorry disengaged because of a nullity to be, but to apologize for him is not yet in question. His colleagues Haruhiko Shimotsuki he envies something because he is so good with Tagami-sensei knows, in which he secretly has a crush, but in their presence too awkward lists, as they notice that, or he would say it openly.