Nanaka 6/17
Overview
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.
Episodes
S01E02 Nanaka the Pianist
S01E03 Nanaka the Big Sister
S01E04 Nanaka: Three Good Friends
S01E05 Nanaka and the Three-Person Date
S01E06 Nanaka and the School Trip
S01E07 Nanaka and the Rest of the Trip
S01E08 Nanaka the Nurse
S01E09 Nanaka and the Cultural Festival
S01E10 Nanaka 17 to Nanaka 6
S01E11 Domical Nanaka
S01E12 Nanaka Kirisato 17 Years Old
Cast

Takashi Matsuyama
Taizou Kirisato

Sakura Nogawa
Kuriko Aratama

Chiemi Chiba
Nanaka Kirisato

Yui Horie
Yuriko Amemiya

Kenichi Suzumura
Nenji Nagihara

Kaori Nazuka
Satsuki Arashiyama

Tomoyuki Shimura
Jinpachi Arashiyama

Asami Sanada
Magical Domiko

Mika Kanai
Pikota

Sanae Kobayashi
Chemical Kemiko

Nobuyuki Hiyama
Yoshida

Saeko Chiba
Chie Kazamatsuri