Jeoldaejado Appaneun Cheoeumira

After being whisked away to another realm, Lee Kangjoon spent centuries defeating powerful foes, commanding armies of the dead, and bending entire realms to his will—becoming one of the greatest emperors and necromancers ever. Having achieved everything, he now only wants peace and quiet. Upon finding his way back home to Earth, he expects just that… only to face the most daunting quest of his life: raising a daughter. Can a man who once ruled kingdoms and overthrew rulers conquer fatherhood? (Source: Tapas)