You are a doctor.
Live in a small town.
You think that you will live an ordinary life in this life, that you will marry a wife and have children when you are old, and that your life will be safe and smooth.
But unfortunately, you encounter a monster.
She's bound to turn your life upside down.
Even more unfortunately,
You have fallen in love with her.
"My dear, let's turn this world upside down."
[Demining before reading]
The male protagonist is human, the female protagonist is monster
The full text is in second person, male protagonist's perspective
Motto: Love knows no race.