Kaihen no Mahoutsukai

In a secluded realm, there resides a hermit wizard, dwelling within the confines of an ancient castle, distanced from the clamor of civilization. He is staunchly opposed to taking on apprentices, preferring solitude and the mysteries of his arcane studies. However, fate weaves an unexpected twist when he encounters an enigmatic young boy. This chance meeting sets into motion the prologue of an impending catastrophe that looms over the entire world, threatening to unravel the very fabric of existence.