Fantasy Doomsday: I Choose to Keep My Promise

I rely on keeping my promise to stand alone as a king, and I have always wanted to find a book like this. However, let alone writing about keeping my promise, there are very few books about glory of the king, so I thought about writing one myself. The author is a newbie, so I beg for help. . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.