Review Detail of YourGrandpa in Reincarnation(Fucked it up)

English in not my first language so please (bear?) or (bare?) with my review. Author, maybe try to add more on the synopsis because not many people will try to read a couple of chapters to understand what kind of novel they're reading, heck even I didn't do it, but I'm willing to read a few chapters and see how it goes from there. I'm giving author 5 stars for encouragement.