Return of the Immortal Emperor: Protecting My Sister, I Sweep the Martial World (59 episodes)

Chen Ye accidentally stumbled into the cultivation world and spent three hundred years cultivating there, eventually becoming an Immortal Emperor. When he finally returns to Earth, he discovers that only five years have passed. He arrives just in time to find his younger sister surrounded by loan sharks after borrowing money to boost her vitality blood. Chen Ye steps in immediately to resolve the crisis. However, his sister still views him as the good-for-nothing older brother from five years ago, not believing he has any real ability and stubbornly trying to protect him instead—until Chen Ye reveals his overwhelming, crushing power at the martial exam.

仙帝归来：我护妹横扫武道界

Return of the Immortal Emperor: Protecting My Sister, I Sweep the Martial World - Episode 1