About You I Don't Know: One day, college student Keiko, who is looking for a job, learns that the person she had feelings for has committed suicide. Keiko wonders if she was the cause of this. Classmate Mami, through her boyfriend Takuya, tries to introduce Keiko to Kazuo, a member of Takuya's theater company. However, Keiko, who met Takuya, has a special feeling for him. Miyata, a young man who seems to be hiding in the darkness of everyday life, meets Keiko one day.