Summoned to a mystical realm alongside a charismatic stranger and an enchanting maiden, Usato Ken—an unremarkable high school student with no extraordinary talents—braces himself for rejection. Instead, he discovers unexpected kindness from his new companions, igniting fragile hope for a fresh start in this fantastical world. Yet salvation proves illusory. Usato harbors a dormant magical gift, one that condemns him to a brutal crucible of intensive training. What begins as promise transforms into relentless torment as he grapples with the devastating power awakening within him. Caught between newfound camaraderie and the harrowing trials that test his very limits, Usato must master his hidden abilities—or be consumed by them—in this action-packed adventure where healing magic becomes both salvation and curse.