The heroine has a strong otaku attribute, she is afraid of the constraints of marriage, yearns for a free life, believes in but rejects love,
As for the male protagonist, you think he is excellent no matter how good he is. He has narcissistic tendencies. Also, because of the female protagonist's character, his love life has twists and turns, and he worries about gains and losses.
The plot, no matter how bloody it is, is just a matter of the excellent male protagonist dealing with the marriage-phobic female protagonist, plus a little bit of the mood of the knot itself.
Just sauce...