Old Man?No,He Is The Demon Slayer

Gareth, the renowned monster hunter across the land of Westerland, has been living in obscurity under a hidden identity while tracking the traces of the King of Hell. Years later, he arrives in Whitewater Town, only to discover that his daughter Sofia has fallen into a crisis — and the one threatening her is Asmond, the cruel prince of the North Empire, who wields the power of the King of Hell. With both reasons stacked together, Gareth no longer hides his identity or his strength, and strikes with overwhelming force...