Setsuna Mudo, a 16‑year‑old high schooler, is simply trying to survive the daily grind without attracting the ire of his cruel seniors. The situation worsens when he finds himself infatuated with his little sister Sara, who visits only once a month. Yet life has more twists than merely staying out of trouble.
Suddenly, Setsuna is confronted by enigmatic entities—angels and demons alike—each claiming to reveal his destiny. The angels declare him the reborn avatar of their chief, Alexiel; the demons insist he guided them into a war against God.
While grappling with his newfound role amid these uncanny events, the ancient clash between Heaven and Hell looms to flare again. Will he be ready when it erupts?
