Summary
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
Kageno Isshoku, an old man without any superpowers, gave up his dream of becoming a hero. He lives a quiet life, teaching yoga to the elderly in a rundown dojo. One day, his former disciple, Nagi, the youngest S-rank hero, visits him. She asks him to be a special instructor at the elite "Imperial Superhuman Training School." Reluctantly, he agrees. Now, he must face arrogant students who mock him for being powerless
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