Something Is Off About the Shadow Guard

Shen Du wakes up to find himself in an unfamiliar room, his clothes in disarray, with a breathtakingly handsome stranger lying beside him. And it looks like this man just had some indescribable kind of relationship with him.

Shen Du's inner monologue: What the heck? What the heck, what the heck, what the heck? What's going on? Wasn't I working overtime? Did I transmigrate after dying from overwork? Fine, I transmigrated, but why does my story start with the aftermath? Who is this guy? What did I do to him? What did he do to me?