In an incident caused by the mysterious force of Ergardia, three childhood friends reunited after being separated for three years. Due to the loss of his hometown, Raiken J chose to seek his role as an Avenger, to take revenge on the creatures that annihilated them, while also spending his precious time with his childhood friends. This gave him the confidence to fight alongside them, which allowed him to gain the designation of an Avenger. However, the prosperity was short-lived. In the wake of the arrival of the soothsayer, their friendship changed, and a new tragedy was born...