One is unsympathetic and the other is slow and clumsy.
The encounter between Yu Mo and Li Han was supposed to be a farce, bringing into contact two parallel lines that should not have intersected; confusion and complexity are struggling in their different worlds. Love is one party's choice to abandon the precise calculation plan, and the other party's decision to deviate from the original track...
Yu Mo's life is a precise mathematical equation. Until he was in the hotel room and bumped into the student he failed, Li Han, a "seller" who accidentally participated in this own transaction.
An own mistake became a tacit secret between the two of them.
Yu Mo is good at calculating everything, including interpersonal relationships. Li Han was the only variable in his formula: he was so stupid that it gave him a headache, but his incomparable frankness made him confused.
He believed that extra after-school tutoring was a manageable risk. Unexpectedly, this "idiot" student would use the most straightforward method to break down the wall he had built for twenty-eight years called Lonely Interests.
"Teacher Yu, I will help you keep the secret, can you let me pass?"
"Teacher Yu, I want to go further... Can you teach me?"
In the first year, the lecturer is white and black.
Intention: Real growth is not about constant calculation and persistence, but about learning tolerance, understanding and courage to love in each other's company.