The Arena's Spirit Master

Kim Hyun-Ho, a failed civil service student, dies from a heart attack. He wakes in a sterile white room, facing an angel who offers a grotesque second chance: fight in the \"Arena\" or cease to exist. Thrown into deadly missions, Hyun-Ho gains \"Karma\" with every victory, a currency to upgrade his skills. His unique \"Spirit Summoning\" skill quickly evolves to a Superior level, allowing him to fuse with powerful spirits like Sylph (wind) and Kasa (fire), transforming him into an unstoppable force with tripled power. But his rapid ascent and the brutal killing of elite enemies have caught the attention of powerful global factions, including a vengeful Chinese organization. Now, he's returned to reality, a walking arsenal, only to find his family tangled in a brewing international war—and he's the primary target.