[No romance]
…
Sold to the Demon Sect by his biological parents, the young man refuses to yield and is determined to become the only demon in the world!
He will not stop until he reaches the other side of victory. The goddess, the saint, and the empress are nothing but cauldrons.
A Transmigrator with a below-average aptitude for immortal cultivation obtained a mysterious Immortal Mansion and from then on embraced on a path to eternity in this cruel cultivation world.