A man he's only just met asks Makoto if he can help him figure out who killed his son five years ago. Thus begins some detective work for Makoto, which ends up digging up things that perhaps should have remained buried in the past.
I'm Akihiro Matsuda, age four!
!أنا أكيهيرو ماتسودا، عمري أربع سنوات
Ich bin Matsuda Akihiro
und bin vier Jahre alt.
¡Soy Akihito Matsuda, tengo cuatro años!
Je m’appelle Matsuda Akihiro.
J’ai 4 ans.
Meu nome é Akihiro Matsuda,
tenho quatro anos!