I Swallowed The Martial Arts Villain [Official]

forty years ago, monster-filled towers appeared, unleashing chaos across the world. heroes, empowered by spirits, rose to combat the beasts. jaeha min, a soldier turned civilian investigator, dreams of becoming one of these heroes despite his low aptitude. everything changes when he accidentally bonds with the spirit of the heavenly demon. now with a powerful mentor inside him, jaeha embarks on a journey to master his newfound abilities and help the demon return home.