I became a sun

Lin Bai transmigrated into a sun, and after spending billions of years in a very limited and boring way, he was given the template of Karna by a mysterious person and gave him a job.
The universe will be divided into six star areas. He needs to manage his own star area, the dimension he belongs to, and the parallel universe, guide civilization, create civilization, record civilization, and fight against... the unspeakable disaster that may appear in the future
ps: This book is not a hardcore sci-fi, welcome to find some loopholes that affect reading ps: the main body of the sun, but the main action is in human form, I like to read hardcore non-human attention