Time travel + sex change + harem + immortality
As a time traveler who came to the world of immortality not long ago, Chen Qiu has been wandering for many years and has only now fully awakened his system. His own system turned out to be a lolita with straight black hair.
Later, he discovered that this other world where insects were used to cultivate immortality could not live forever, so he traveled through it again and went to another world to try to achieve immortality.
