

Satsuki Kakeru lost his sister by suicide and has been living a dull life ever since then. One day, he is transported into a bizarre world "Red Night" along with his friend Minase Yuka. In order to survive and escape from Red Night, he fights against Dark Spirits (Ralva) and Black Nights.
In the United States

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All options, opens in a new tabSeason 1, 12 episodes
Based on
Based on 11eyes: Tsumi to Batsu to Aganai no Shōjo
Episodes
Ran for 1 season and 12 episodes (2009)