There is a group in the world that relies on trading lives with humans to survive
"Just write down your needs on the website and we will do our best to serve you at a fraction of the cost."
Yi Litong is responsible for taking orders. On the surface, he is an ordinary history teacher, but in fact, he is a backstage manipulator placed in the school.
So, you only have one chance, have you decided to trade with me?
Purpose: I hope to express that no matter what it is, there is only one chance.