Grimm Connect: Akazugin no Shou

Historia

Purify the fairy-tale world consumed by madness. Mahiru Mikado, a boy whose sister is afflicted with an incurable illness, discovers a bright red book in the juvenile detention center’s library. Out of curiosity, he opens it only to find a tale of tragedy completely unlike the Little Red Riding Hood he knows so well. Stunned, Mahiru finds himself standing before a mysterious girl in a pure white space. “Well then, shall we begin? This is, without a doubt, your story.” And so begins the twisted cycle of madness. A deranged fairy tale where failure means death, and the cycle repeats endlessly.

Sinopsis vía AniList (en inglés).