22-Year-old Xu Huaiqing, a new businessman, is an alpha in abstinence, but is unable to resist his younger brother.
20-Year-old Xu Wenran, the young master of the Xu family, seems to be well-behaved but is actually a sinister person. Every day, he goes crazy on the edge of his brother's minefield.
Brothers from other people's families: Brothers, friends, and brothers respect each other and love each other.
The Xu brothers: On the surface, they are brothers and sisters, but secretly they are inseparable due to pheromones.
Xu Wenran: Brother, do me a favor, my inhibitor seems to have failed.
Xu Huaiqing (sighing, untying his tie): ... It won't happen next time.
(The next day) Xu Wenran: Brother, you lied to me again!
Xu Huaiqing believed that his feelings for his brother stopped at his responsibility and restraint.
Xu Wenran thought that her dependence on her brother was just a habit she had had since childhood.
Until the high fever during the estrus period burned the thin window paper between the two people clean.
They discovered that each other's pheromones were not repulsive, but the most fatal and hopeless attraction in the world.
"Huai Qing, are we sick?"
"Yes. And there is no cure."
This is a sinking called "crossing the line", and it is also their own, irreversible redemption.
Concept: A younger brother's feelings for his older brother are often mixed with attachment and admiration from childhood to adulthood, as well as the desire to talk to each other on an equal footing or even possess the other person as an adult. This is a process of alienation from "family affection" to "love".
In a wealthy family or a high-pressure environment, the two brothers are often each other's only support. This feeling goes beyond ordinary love and is a kind of soul symbiosis in which "you are the only one in the world who can understand me and accept me."