Rebirth in the World of Cultivation

The male protagonist was summoned by his soul and traveled to the world of immortal cultivation. He unexpectedly got a younger sister. The younger sister and the male protagonist told the origin of this world. The origin was the battle between 10 immortal kings. In the end, Immortal King Ruofan was promoted to the Immortal Emperor. Immortal Emperor Ruofan created a giant tree reaching the sky on the sea of ​​chaos called the World Tree. Each leaf of this giant tree is a universe. The male protagonist met the defeated Immortal King by chance and became his disciple. What kind of story will there be next? Please look forward to it This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.