11eyes is a manga that has been published since October 2009. The series has the PC game 11eyes: Tsumi to Batsu to Aganai no Shoujo as background. In addition, a 12-part anime OVA as well as appeared in this series.
Satsuki Kakeru and Yuka Minase, two childhood friends, peacefully conducting their studies in high school. Kakeru has still two peculiarities: he lost his sister in 7 years, and his right eye is brown. One day, along with some of their comrades, they switch suddenly to a parallel universe: the Red Night, because the sky is that red, and the sun is black.
Satsuki Kakeru and Yuka Minase, two childhood friends, peacefully conducting their studies in high school. Kakeru has still two peculiarities: he lost his sister in 7 years, and his right eye is brown. One day, along with some of their comrades, they switch suddenly to a parallel universe: the Red Night, because the sky is that red, and the sun is black.