Love is better to be lacking than in excess. If there is a trace of flaw, then there is no need for it to exist.
The same is true for family ties.
The heroine is very low-key and cold, so cold that she is almost callous.
The male protagonist looks cold on the outside, but is very gentle and gentle to the people he recognizes.
There are some minor twists and turns, but overall it's warm and the ending is high.