The Red Thread

Mei has been in love with Yuya all her life. They've grown up together. But when they reach their second year of middle school, Yuya suddenly professes his love for her older sister, Haruna.

• 
  Shosuke Murakami

• 
  Junpei Mizobata
  Nishino Atsush
• 
  Nao Minamisawa
  Takemiya Mei
• 
  Ryo Kimura
  Takahashi Riku
• 
  Rei Okamoto
  Yamagishi Mia
• 
  Hitomi Miyauchi
  Nakagawa Sara
• 
  Toshihiro Yashiba
  Inoue
• 
  Mio Miyatake
  Takemiya Mei (young)
• 
  Manabu Hamada
  Ishikawa Haruo
• 
  Anna Ishibashi
  Tadokoro Mami
• 
  Kaoru Hirata
  Kawaguchi Miyabi
• 
  Mirai Yamamoto
  Nishino Natsumi
• 
  Hiroshi Yazaki
  Shinozaki Yuya
• 
  Kenji Matsuda
  Murakoshi Koichi
• 
  Shigemitsu Ogi
  Morisaki Takamichi
• 
  Yanagishita Tomo
  Fujiwara Natsuki
• 
  Sayuri Iwata
  Takemiya Haruna
• 
  Masahiro Komoto
  Takemiya Toshihisa
• 
  Ruka Sawaki
  Nishino Atsushi (young)
• 
  Ryuya Wakaba
  Yasuda Shu
• 
  Kosuke Suzuki
  Dr. Ota