Ai, Sunakawa's sister three years his senior, is shocked to learn during a home visit that Takeo is dating. Having secretly harbored feelings of her own for Takeo, Ai is suspicious of Takeo's girlfriend and launches her own investigation...
On his way here, he saved a drowning boy.
Unterwegs musste ein Kind
vorm Ertrinken bewahrt werden.
Salvó a un niño que se estaba 
ahogando mientras veníamos.
Salvó a un niño que se estaba 
ahogando mientras veníamos.
Venendo qui abbiamo salvato
un bambino che stava annegando.
No caminho, ele salvou 
um menino de se afogar.