Seventeen-year-old Nanaka Kirisato is a high school student serious about her studies and goals in life. She frequently criticizes her best friend, Nenji Nagihara, for being a childish delinquent who spends his time fighting other boys. Then one day, after a heated argument with Nenji, she falls off a flight of stairs and suffers a brain injury, resulting in her mind reverting to that of a six-year-old. With this in mind, Nanaka's father and Nenji must keep her injury a secret as she struggles to live a normal life and grow up all over again. (Source: ANN)

Type: TV

Country: Japan

Premiered: Spring 2003

Date aired: Apr 16, 2026 to ?

Broadcast: Thursdays at 00:55 JST

Status: finished

Source: Original

Genres: Drama, Romance, Comedy

Scores: 7 / 222 reviews

Duration: 3 min

Episodes: 13 / ?