Qin An figures he must have done something terrible in his previous life, maybe as a truly awful villain. Otherwise, why would he have run into Luo Si in this one? When they first met, Luo Si's stinky socks made him throw up. Luo Si treated him to dinner, then Qin An ended up in the hospital in the middle of the night with gastroenteritis while Luo Si was perfectly fine. Luo Si likes to wipe his stinky sweat on him, burp garlic breath in his face, and fart with the smell of chives... Qin An can put up with all of it because none of it is intentional. Every time, Luo Si apologizes guiltily and tries to make it up to him as best he can. Qin An thinks Luo Si is practically a little kid who can't do anything for himself.
Luo Si thinks he must have been a savior in his previous life to have met Qin An in this one. Qin An not only washes his socks and tutors him, but also takes care of him when he's unwell. He's practically the best roommate in the world. As they gradually become friends, Qin An gives him plenty of help and understanding, and Luo Si feels that he wouldn't be able to do anything at all if he ever left Qin An. Gradually, he becomes possessive of Qin An and wants him all to himself.
"I'll be away for many years."
"That's okay. I'll wait for you."
"What if I never come back?"
"Then I'll come find you. It'll be like a trip. But you have to give me your address, or I won't be able to find you."
I always carry the pendant you carved for me. I know you still keep the things I gave you, too. Some things are for us to know. We don't have to tell the whole world. The world is busy enough as it is.
Theme: Love isn't frightening. What's frightening is having no love.