Mirai

Unhappy after his new baby sister displaces him, four-year-old Kun begins meeting people and pets from his family's history in their unique house in order to help him become the big brother he was meant to be.

• 
  Moka Kamishiraishi

  Kun (voice)
• 
  Haru Kuroki

  Mirai (voice)
• 
  Gen Hoshino

  Father (voice)
• 
  Kumiko Aso

  Mother (voice)
• 
  Mitsuo Yoshihara

  Mysterious Man (voice)
• 
  Yoshiko Miyazaki

  Grandmother (voice)
• 
  Koji Yakusho

  Grandfather (voice)
• 
  Masaharu Fukuyama

  Young Man (voice)
• 
  Kaede Hondo

  Baby Mirai (voice)
• 
  Jaden Waldman

  Kun (English version, voice)