Nanaka 6/17 EP1 - Nanaka Kirisato, 6 Years Old

Nanaka scolds Nenji on getting into yet another fight, but when Nenji tells her he does not want to be friends with her anymore, Nanaka is shocked and falls down a flight of stairs. When she wakes up it is revealed she has the mind of a six-year-old. Nanaka's father asks Nenji to watch over her. When Nanaka goes missing at the hospital, Nenji finds her at her old kindergarten school and tries to comfort her.