In the spring of a new semester, a "ranking" is sent to Class 2-D. It clearly shows the rankings of all the students and the homeroom teacher. The one who ranks 1st is Himeyama Tsubaki, a kind and popular honor student recognized by everyone. But one day, without any warning, she commits suicide. A few days later, everyone in the class receives a suicide note from Himeyama, and from that day on, the class begins to fall apart.
Hokuto Yoshino
Shuya Ikenaga
Ryubi Miyase
Seiichi Chikage
Sara Shida
Kurumi Hatsukaichi
Minato Matsui
Shuya Ikenaga
Akari Takaishi
Rinna Mikado
Shugo Oshinari
Makato Kaihara
Kokoro Aoshima
Ami Kinukake
Keishi Arai
Masaaki Oki
