Mentor manga & manhwa

Art Lapsa has 1 Mentor series translated into English, listed below.

The Shadow Hero, an Old Man: In a World Where Superpowers Are Everything, a Powerless Old Man Is Doted On by His Beloved Disciple and Becomes a Hero from the Shadows cover
Japanese flag

The Shadow Hero, an Old Man: In a World Where Superpowers Are Everything, a Powerless Old Man Is Doted On by His Beloved Disciple and Becomes a Hero from the Shadows
Japanese