The One Who Chases Cats

[Modern romance + fantasy + plot-driven + one female lead + villain] I woke up, and everything had changed! “Sun Bo! What do I do? I've turned into a human!” “What else can we do? We have to accept it. From now on, I'll protect you for the rest of your life!” “No! She's an aberration! You can't protect her!” Together, they overcome the Black Flame crisis and save the higher world! Beneath the romantic constellations, they seal an eternal kiss. “Sun Bo, why are you looking at me like that?” “Because... I like you.” “I was only a cat spirit from the higher world. Love isn't a thing for me.” “I don't care where you come from. You'll always be the only one for me!”