It's a story about a powerful immortal 9 tail fox spirit that has reached the peak of power from before mankind's existence, got tired of his life after certain experiences happened and grew curious about living the moral life as a human.
Main character comes across brash but justifies his actions well. Side characters have clear traits and although haven't been developed as deeply, are well fleshed out. The actions of characters are thoughtfully executed and the world is interesting and developing well.
It dips into eastern mythos but is easy enough for everyone to understand.
Overall, very well paced and an enjoyable read, it gets 10/10 since I have read this multiple times and still get hit with bits of emotion without losing interest.
Will be in my top 3 manwha if the quality stays the same after it hits chapter 100.