Fed up with Naoki's cold behavior, Kotoko leaves home. Kotoko's official capping ceremony approaches, making her a full-fledged nurse.
Onii-chan has matured so much 
since you came into his life.
Onii-chan ist so erwachsen geworden,
seit du in sein Leben getreten bist.
Naoki ha madurado mucho 
desde que está contigo.
Naoki ha madurado mucho 
desde que está contigo.
Naoki a beaucoup évolué
depuis qu’il t’a rencontrée.
Meu filho amadureceu muito
 desde que ele está com você.