ข้อมูลอนิเมะDear Brother

Nanako Misonoo enters Seiran Gakuen Girls High School and is assigned to Class B.

The nomination day has come. The nominees from Class B are Mariko Shinobu, Kaoru Orihara, and Nanako.

Nanako suffers from nasty harassment after being nominated to Sorority. On the verge of collapse because of the cruel bullying, Nanako thinks of declining the invitation to the party, which is to select the official members.

The day after the party, the finalized list of the new members is announced. Both Mariko and Nanako are listed. Nanako is surprised that she had been accepted even though she had not attended the party.

On the day of the entrance ceremony to Sorority, Nanako and fellow students are summoned for the preparation.

After Nanaoko is accepted in to Sorority, everyone at school is hostile to her, even Tomoko, her best friend. One day Nanako is unable to find her sports bag which she had brought for sure.

Persuaded by Miya-sama, Nanako decides to stay in Sorority. However, the unable to bear the continued harassment, she escapes to the clock tower.

Mariko feels uneasy about the restored friendship between Nanako and Tomoko. She invites Nanako to her birthday party. Although afraid of Mariko's eccentricity, she can't decline the invitatio

Nanako, who witnessed snippets of Mariko's insanity, realizes she cannot be open with her. One day, Kaoru suddenly collapses.