One Summer Story

Two different high school children - a swimmer and an academic - set off on a quest together one summer.

• 
  Moka Kamishiraishi

  Sakuta Minami
• 
  Kanata Hosoda

  Moji Shouhei
• 
  Yuki Saito

  Minami's Mother
• 
  Etsushi Toyokawa

  Minami's Biological Father
• 
  Yudai Chiba

  Moji's Older Brother
• 
  Kanji Furutachi

  Minami's Stepfather
• 
  Tōru Shinagawa

  Moji's Grandfather
• 
  Hina Yukawa

  Miyaji
• 
  Miyu Tomita

  Koteko (voice)
• 
  Daisuke Namikawa

  Count Cement (voice)