Nanaka 6/17 (ななか6/17) is a Japanese manga series written and illustrated by Ken Yagami. The manga was published by Akita Shoten between 2000 and 2003, with the chapters collected into 12 tankōbon volumes. An anime television series adaptation, animated by J.C.Staff, aired on TV Tokyo from January to March 2003. In 2004, the anime series was licensed for distribution in North America by ADV Films and released on DVD in 2006.
Story
The story focuses on the cold and distant seventeen-year-old Nanaka Kirisato, a girl who cares only about studying and getting accepted into a good college. Her childhood friend Nenji Nagihara does not care much about school and often gets into fights. At the start of the story, Nanaka berates Nenji for fighting and tells him he needs to grow up. After Nenji tells her that he never wants to see her again, Nanaka is devastated and later falls down a flight of stairs. She loses her memories and suffers from regression, acting as though she is six years old. She also believes that Nenji made a wish to become an adult like her. Nenji ends up having to watch over her as she attends high school, leading to trouble and comedic situations.[2]