Review Detail of Flajavin in Returning from the Immortal World

In just a few chapters that I read the plot barerly had any progress, a 10.000 year old man screamed like a kid just because he was about to get slapped, the author changed his mind about the powers that character had because he realised that he made it too op in the previous chapter and the rest was just useless chatting to add as many words as possible to the chapters. I really don't get it how people actually recommed this book, I'll stop here.