Hironori Kondô

Serafina de Lavillant, the strongest female knight in the West, was sent to subjugate the barbaric tribes of the East. But when her mission fails spectacularly, she's captured alive and imprisoned. Humiliated and dreading what horrific torture she'll endure, she asks to be put to death. To her surprise, rather than tearing her limb from limb, the tribe leader asks for her hand...in marriage! Will Serafina face a cruel and abusive arranged marriage? Or will she discover that these tribes aren't as barbaric as she was led to believe?

The anime centers on Minoa Asagaya, a new high school student in Sakaneko Private High School. Despite being a novice to anime, Minoa's classmate Arisu Kamiigusa invites her to make an "anime research club" at school. Through conversations with her classmate Miko Kouenji, as well as various anime-loving upperclassmen, Minoa gradually gets hooked on anime. While they stand against the student council's continuous efforts to disband their club, and they ignore the impending end of the world, they talk about anime, whether in Akiba, or in real-life "sacred place" anime settings, or the hot springs.

The story is set in an alternate world ruled by two tarot decks. The Diablos Tarot that feasts on the souls of living humans and uses that nourishment to bring countless pain and suffering, and the Elemental Tarot that draws its energy from the power of nature in order to oppose the Diablos Tarot. Girls chosen from 22 different bloodlines become the wielders of the Elemental Tarot, plunging themselves into a secret battle to maintain the balance of the world while carrying an unbearable guilt. Are they executioners? Or saviors? This is the story of the long, long battle fought by girls who cannot escape the fate they bear.