11eyes: Sin, Damnation, and the Atonement Girl

11eyes -罪と罰と贖いの少女-

Years after losing his older sister, Satsuki Kakeru gets by day to day with his childhood friend Yuka Minase, until the sky turns red, the moon turns black, and everyone around them vanishes into the phenomenon known as the Red Night. Among the handful caught in it with them is Misuzu Kusakabe, a swordswoman of the Kusakabe onmyoji line. Six black knights stand between the group and any way home, and the manga carries the story through to its end with Misuzu's arc at the centre.