Back as Immortal Lord

📖 SYNOPSIS

Three years passed in the mortal world since Yun Qingyan vanished — but those three years were three thousand on the other side. On the other side, he spent three thousand years in the immortal realm, clawing his way up to become the Yun Emperor — one of the ten most powerful immortal emperors in existence. But immortal politics wore him down, and he missed his family, so he gave it all up to come back home. The problem is, home isn't what he left behind. His parents and sister have mysteriously disappeared, and the world he once knew has moved on without him. Now he's an overpowered cultivator walking around in a realm that can't even scratch him, trying to piece together what happened to the people he sacrificed everything to return to.

This is a 16-episode ONA from LX Animation Studio, adapted from a web novel, and it leans hard into the "returning emperor" power fantasy. If you liked Tales of Demons and Gods or Battle Through the Heavens — that whole vibe of a ridiculously strong protagonist re-entering a world that underestimates him — this is in the same lane. The martial arts action is solid, and the historical fantasy setting gives it that classic xianxia atmosphere. The real hook here is the mystery thread: why did his family vanish, and who's responsible? It's not reinventing the genre, but if you're already into Chinese cultivation anime and want something action-packed with a revenge-adjacent storyline, Xian Di Guilai scratches that itch.