[From SnowKiss]: Towa became a sweeper admiring the legendary sweeper called, â€œOrange-Eyed Messiahâ€. The task of sweeper, which requires to â€œsweepâ€ the monsters Adys is quite hazardous. On his first real attempt at fighting Adys, Towa encountered Kei, a former sweeper who saved him from being killed. Towa asked Kei to take him as a student. However, not only Kei plainly rejects Towaâ€™s request, he tells Towa that he saw the â€œOrange-eyed Messiahâ€ die!? An appearance by a mysterious man who seems to be connected to Kei showed up with a grudge from the past. Who is he and what is his relationship with the â€œOrange-Eyed Messiahâ€? Will Towa finds out about Keiâ€™s past too?