In the waning days of peace, dark visions plagued the dreams of King Alaric of Numeria — a kingdom once bathed in light, now trembling beneath the weight of an ancient omen of a long-buried evil. When lore and wisdom failed to answer, the king turned to a forbidden ritual.

Fifteen-year-old shut-in Kazuki Hasunuma's high school life ended before it began, his world shattered when the ritual pulled his soul into the body of a warrior in a realm torn by war. Now, with newfound powers and abilities, Kazuki must navigate a brutal world he never asked for. As destiny's tide rises, he faces a chilling choice: save a world on the brink of collapse or stand aside as it falls into chaos.