Zen Seizaki is a prosecutor with the Tokyo District Public Prosecutors' Office. While investigating illegal acts by a certain pharmaceutical company, Seizaki stumbles upon a page stained with a mixture of blood, hair and skin, along with the letter "F" … Yuichi Nakamura, Satsuki Yukino, Takahiro Sakurai, Kensho Ono, Mao Ichimichi, Kenyu Horiuchi, Kazuyuki Okitsu Added on Amazon Prime 2023-07-25.