Nanaka Kirisato
main character
TV
6.4
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
- Format
- TV series
- Episodes
- 12
- Episode length
- 25 min
- Total watch time
- 5 hours
- Status
- Finished
- Aired
- January 8, 2003 – March 26, 2003
- Season
- Winter 2003
- Source
- Manga
- Studio
- J.C.STAFF
- Director
- Hiroaki Sakurai
- Original creator
- Ken Yagami
- Music
- Toshio Masuda
- Age rating
- PG — Teens 13 or older
- Country
- Japan
- AniList score
- 64/100
Estimated watch time
5h
⚡ 3 days at 5 eps/day
Tags & Tropes
Age Regression79%School79%Primarily Female Cast79%Shounen60%Female Protagonist60%Swordplay40%
overview details
Synopsis
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: Anime News Network)
Should you watch Nanaka 6/17?
Nanaka 6/17 has been met with mixed reactions, with an average AniList score of 64/100 — 34% of 700 ratings are 8/10 or higher.
It ranks #44 highest-rated anime of 2003, and #65 most popular anime of 2003, and #7 highest-rated anime of Winter 2003 on AniList.
Of the 1.3K AniList users who started it, 11.2% dropped it, so it is dropped more often than most; 979 have finished it.
At about 5 hours in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Comedy, Drama, Romance — especially age regression, school, primarily female cast, shounen.
Where to Watch Officially
A streaming link is not listed for this title yet.
Episodes
12 episodes are listed.
Main cast & voice actors
Creators & key staff
- Original creator
- Ken Yagami
- Director
- Hiroaki Sakurai
- Music
- Toshio Masuda
Where it fits in the series
- Optional extras: Nanaka the Distraction
Related entries
Opening & ending themes
Openings (1)
- OP1“Sunao na Mama” · eps 1-13
Endings (2)
- ED1“Taisetsu na Negai” by CooRie · eps 1-11, 13
- ED2“Magical Happiness: Magical Domiko no Theme” · eps 12
Theme data from AnimeThemes.moe.
If you like Nanaka 6/17
Nanaka 6/17 FAQ
How many episodes does Nanaka 6/17 have?
Nanaka 6/17 has 12 episodes of about 25 minutes each, roughly 5 hours in total.
How long does it take to watch Nanaka 6/17?
About 5 hours back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
Is Nanaka 6/17 finished?
Yes. Nanaka 6/17 has finished airing — the final episode aired March 26, 2003.
Is there a season 2 of Nanaka 6/17?
No sequel is listed for Nanaka 6/17 as of October 2026. You can continue the story in the original manga.
Is Nanaka 6/17 based on a manga?
Yes. Nanaka 6/17 adapts the manga by Ken Yagami.
Who animated Nanaka 6/17?
Nanaka 6/17 was animated by J.C.STAFF and directed by Hiroaki Sakurai.
Who sings the opening of Nanaka 6/17?
The opening, "Sunao na Mama", is performed by an uncredited artist.