The first thing to point out is that this is a pure romance novel, with polyamory, ethical issues, awkwardness, thunder and blood.
Although I am not a Mary Sue, I know that this thing has some natural flaws, ╮(╯▽╰)╭
Xu Xiaoling and Xu Qingyan are childhood sweethearts, brothers and sisters, and lovers. Or, I don't know if this counts as a lover.
This was something I wrote when I was a freshman in high school, and it was also the original source of "Dear Let's Tell Vulgar Stories." It was later overhauled, but the final result was not produced even in the senior year of high school. Now I'm rewriting it. Regardless of whether anyone will read it or not, I still want to finish it. Just saying that because I need to finish it myself.