In Saeko Matsushita's class was a troubled, bullied student named Kawai who suffered from chronic absenteeism due to complicated family circumstances. Deeply concerned about his situation, Saeko decided to visit him at home. Though Kawai resented his own misfortune, being alone with Saeko gradually stirred emotions within him, shifting his feelings. As their inner thoughts intertwined, a new and twisted relationship began to take root.