It's a pretty good story about the male protagonist, but the emotional line is a bit emmmmmmmmm. It's not that the male protagonist is not good, nor is the female protagonist bad, it's just that the female protagonist appears too late, and it's a thousand-year-old lyb paired with silly white sweetness, which really doesn't match well.
I haven't read it for a long time. I've added it to my book list so that I can recall the plot a second time and then read it again. [It's changed] I vaguely remember that it's my favorite survival story [A Dog's Head Holds a Rose].