Tamura, a plain and unglamorous announcer, has only one special skill: he "absolutely never stumbles over his scripts." Suddenly, he finds himself reincarnated into another world in the body of Phil, a boy with zero magic power. No overpowered abilities, no cheat skills—it seemed like another incredibly plain life was about to begin... until Tamura encounters a certain "Forbidden Book."

Written inside is "Incantation Magic," a forbidden art where biting your tongue costs you your life. "Extremely long texts with a strict time limit"—even this magic, deemed impossible to cast and labeled a taboo, can actually be chanted by Tamura, who "absolutely never stumbles over a script"ーー!?

Bite your tongue and your life is over!! An unprecedented incantation magic fantasy raises its curtain!!