Welcome to this new work. Prologue for the first arc is in the first chapter.
I will try to keep realizing a chapter per two days.
It is mainly a modified rewritten version on my previous two works 'Diary of Other-Worldly King' and 'Other-Worldly King (R-18)'. But as my later work is an improvement with a slight modified timeline and plot on former work. This work is also the same. So if you can not wait for the next chapter and is fine with poor English you find here.
Then you can check out those works, else join me here on this journey with clearer Sky, Moon, and Sun.