Transformation and Upgrade, but Am I Still Me?

Woodlice was an abandoned baby, but for some reason his soul did not dissipate after death. He entered the body of a baby boy, which aroused the interest of the local animal spirit. He was adopted and raised by the animal spirit. In order to live a long life, he later chose to become an immortal. "What!!!! It turns out that Master has not ascended to heaven!!"