Jigudaejangnimui Hakgyosaenghwal

The strongest god in the world craves just one thing: the thrill of a real fight. Tired of being unbeatable, Mu – god of Earth – possesses the body of a weak high schooler to relive the joy of combat. But when his divine form is sealed by his enemy, Mu must grow stronger in his new mortal body to fight back. Can fists alone satisfy a god’s hunger... or will his obsession be his downfall?

(Source: WEBTOON)