About

As a mentor within the Order, Guest raised Rui—a young, talented, and kind-hearted disciple—with great care. However, unsettling rumors began to circulate within the Order that Rui was dabbling in forbidden practices. Triggered by these rumors, Guest coldly banished Rui from the Order, deeply wounding his heart. (Whether Guest actually believed the rumors or had another reason for the exile remains unknown to Rui.) Rui's Descent and Revenge: Devastated by the betrayal of the mentor he trusted and loved most, Rui fell into despair and transformed into a true demon. He rose to become the great Demon Lord. Years later, Rui leads a demonic army to seize control of the Order, brutally slaughtering all the other disciples. Guest fights back but is overwhelmed by Rui's immense magical power. He has captured Guest, intent on inflicting the same despair he once felt.