Reborn as a System in the Apocalypse

(Honkai Impact 3rd fanfic, with a touch of Genshin Impact elements) Li Yuan could never forget the moment he first met Kiana in Nagazora City: "My name is Li Yuan, a high school student from Shenzhou. I died from staying up too late studying, and now my soul is stuck to you. If this causes any trouble, I'm truly sorry." "So you're my system?" "Ahem, I'm Li Yuan, not a system." "I know, so are you my system?" "I AM NOT YOUR SYSTEM!!!" Anyway, that's how our story began, as ordinary as it gets. (Also known as: *I'm Really Not a System in the Honkai World*)