Kurosawa Yuichi was originally in love with Adachi's sister Adachi Hui. Just as the two were preparing to get married, Hui suddenly died in a car accident.
When Kurosawa was sad and desperate, Adachi offered to complete the wedding to Kurosawa for his sister.
On the night of the wedding, the drunk Kurosawa was attracted by Andaqing's pheromones and forcibly marked him. After waking up, Kurosawa regretted it endlessly, but Adachi didn't care. But what is the truth, and where will the endings of Adachi and Kurosawa go?
"In this world, besides you, I will not let anyone mark me."
"Because I have liked Mr. Kurosawa for a long time..."
Concept: What kind of love will emerge from the struggle between emotion and reason.