The Life of the White Fox (2019)

Both dramas are about a supernatural creature (nine-tailed fox vs. mermaid) who loses his spiritual object which becomes physically attached to the FL. While trying to figure out how to get it back, the two end up living together and fall in love.

Both shows have a cute and innocent atmosphere. Both male leads are supernatural beings who fall in love with naive girls and are in doubt between running away or giving in to this forbidden love between the mystical and the human.

Similar tothe life of the white fox in opposite way:
??Female lead can transform to cat because of her special “powers/mission”
??Female lead needs to cohabitate with the lead guy who is a Lord
??Set in “ancient china”
?? Spunky female lead and aloof male lead

Both shows are cute funny and while The Life of the White Fox takes place in the present, but at certain times we are taken to the past, in Love Better than immortally the girl ends up going from the future to the past. In both girls they are innocent and have a strong morality, and the boys are strong and feared by others. In both shows the question is the same "Love or immortality?"
- In both the male leads have supernatural powers