Hifuu Club Activity Record ~ The Sealed Esoteric History

The series unfolds from the perspective of the two members of the secret group, those being Maribel Hearn and Renko Usami, the only members of the Secret Sealing Club. And describes the various stories that happened in Gensokyo in the past.

Cast: Kana Hanazawa, Eri Kitamura, Asami Imai, Kana Asumi, Ai Shimizu, Nao Toyama