Gu Qingze's beloved is dead. He thought his life had gone dark, but then someone with a face remarkably similar to his beloved's showed up at his door, offering to be a substitute for money.
He thought he had simply gained a younger brother, someone to add a little color to his life. He didn't mind spoiling him like a real little brother.
Until, after countless unintentional glances, he realized that the other's eyes, which at first seemed to care only about money, also seemed to hide some other desire.
Taking his money is fine, but taking him to bed is out of the question. He refuses.
Theme: Don't love me. It won't end well