The Invincible Deadbeat

Shin Min-Cheol is the hero of Angeles, a world where he used his powerful mana to defeat an evil king. His arms full of gold, he returns to modern-day Korea to live the dream of being rich and unemployed. However, his peaceful days are shattered when gang activity hits a little too close to home. Before he knows it, Min-Cheol's powers are recognized, and he gets swept up in international intrigue that brings him face-to-face with some heavy hitters. Is Min-Cheol really as invincible as he thought?

(Source: Tapas, edited)