The comic adaptation of the first volume is now available! Reidol Zain, born and raised as the second prince of the Zain Kingdom, lived a peaceful life surrounded by his kind brother and loyal retainers. However, his fate changed dramatically when he was chosen by the royal family's holy sword, 'Dainsleif,' during his coming-of-age ceremony. His brother, the prince, began to see him as a threat to his own royal authority and despised him. Reidol was abandoned by his retainers and fiancée and was exiled to a frontier development city alone. In the frontier, a den of monsters, Reidol struggled to survive and eventually won the trust of those around him. He found new happiness with his companions amidst a harsh and impoverished life. However, when the neighboring Arslane Empire began to invade the Zain Kingdom, his fate took another turn. Forced to fight by his brother to protect the kingdom from the empire's invasion, Reidol decided to rebel against the selfish demands of those who had exiled him. When the exiled prince wields the holy sword, a new legend of heroism begins! The legend of the holy sword, starting with 'rebellion,' is about to unfold!