Is it wrong to take a break in Danmachi? (Rework)

Alvar, after saving his world from the chaos that engulfed it, made a kingdom for all the different races left in the world to rest in peace and harmony. But after a few generations, he started to feel empty and bored. Deciding that his time as the king has come to an end. He decided to leave his world full of good and bad memories and live a new life in a different world. =============================================== A/N This is a rework of the previous ff of the same name, I wanted to try again and change a few things and see if it might be better than the previous one. The MC is op, so this book would be more on the slice-of-life side of things, and I'll be focusing more on the research side of things and trying to uncover things etc. English isn't my first language so do correct some of the mistakes I make!