Natsuki Seta

High school student Haru, who looks like a woman from Jun's past, befriends university student Jun. They meet that woman's grandson, Tokio, and learn that she is dead, but they also look into her life's work.

A soul, homestays in the body of a deceased high school student. While reincarnated, it must find the student's death cause. Limited to 100 days, a glimmer of light and large darkness intersect in the truth.

Makio Kodai, a shy 35-year-old novelist, takes in her 15-year-old niece Asa Takumi after Asa's parents die in a car accident. Despite Makio's difficulties with relationships, she and Asa begin living together, forming a bond.