0 and 1 are jargon used by police to handle homosexual flesh trade, where 0 represents the receiver and 1 represents the giver.
Of course, 0 and 1 are also hieroglyphs, vividly and rudely describing the pose issue between two people.
It wasn't until after eleven at night that he finished his work and finally breathed a sigh of relief, but he was already somewhat exhausted.
Because of the narration, it was easy to deal with those involved, but the difficult part was how to explain things to the others. Fortunately, in the end, he didn't need to explain. He simply said it was a guess, and if they didn't believe him, they could follow his methods, and he'd guarantee they would hit the mark every time. As for how he knew, well, that's a different price altogether.
Ever since the Zhang Guoxin incident, Li Zijun had completely trusted his words. But since Su Qing wasn't telling, she wouldn't ask. After all, she enjoyed the peace, as the case was resolved anyway.
