A young man walks a distance of 175 km and moves to Mishima Cape with a single backpack on him: Yuuji Kazami. The wish of this man so free from worldliness was thus: "I want to enter an ordinary school and lead the life of an ordinary student."

Yumiko Sakaki attempted to cut Yūji with a blade but fails each time in doing that. He somehow got along with Makina, who is actually quite shy, after he helped her to catch the crayfish. He then visits the principle's office for advice on resolving Sakaki's hostility towards him. He also found out that all of the students, including him, have special circumstances that are sensitive. Yūji's guardian and work boss, JB comes to pay him a visit outside of school. This caused his classmates to question him of JB's identity, especially Amane who is concerned whether Yūji has a girlfriend or not. Later, in the evening, he was ambushed by Yumiko with a blade and he responded by grabbing the hand which is holding the blade. He then tell her that he is not her enemy and intended to be her friend. From that day onwards, Yumiko is no longer hostile towards him and treats him as another student in the academy.

Early in the morning, after his morning jog, Yūji saw Amane is hacking into his room and immediately intended spy on her to know her intend to do so. He later found that she wanted to give him a morning kiss. Amane then jumped onto his bed and masturbate after smelling his unwashed clothes. He later then make a song for Makina to tease Amane as he, Amane and Makina runs to the classroom for their late departure to the classroom. Amane later then raise her concern on Makina as she is starting to imitate Yūji's actions after they requested Sachi to buy them drink. Later, he heard a voice that sound somewhat erotic and found out that it is from Michiru, who is playing with the cat and lying on the ground. Next day, he was caught into a situation where Sachi is making him a shark pouch with glitters for him and Michiru somehow got him out trouble by giving it to Makina. After that, during their exercise time, he carried Amane to the nurse room to treat her injured leg. Amane then requested Yūji to become her boyfriend and subsequently his older sister. He agreed to the latter proposal. Next day, Amane and Makina take their lunch with Yūji and he then realize that he had been avoiding people since his "master"'s death.