Emperor's Return: A Bit Overpowered, Is That a Problem?

Lu Qingxuan once ruled the Xianxuan Continent as the legendary Jiuxiao Emperor—wielding six Primordial Emperor Weapons, commanding Nine Sacred Lands, and crushing cosmic threats for three millennia. After uncovering universe-shattering secrets in the forbidden zone Guixu, he's forced to return to his original world, Blue Star, gravely wounded. Now reborn in his homeland, the Emperor who once subdued demon lords and shattered divine dynasties must reclaim his peak power. But when you've already conquered immortal realms, is being ridiculously overpowered back on Earth really such a problem?