Some of the details and the original ideas have changed over time, so I'll leave this here for now and revise it later.
A cold, lovesick sword cultivator gong x a sweet, naive, beloved-by-everyone shou
*
Song Yao transmigrates into a book, landing in the role of a cannon-fodder foil in a beloved-by-everyone xianxia novel about group sex.
If he collects 100 villain points, he can come back to life and return home.
On the first day after transmigrating into the book, he viciously insults the protagonist shou.
Song Yao glares fiercely: "Just you wait. I'll show you what I'm capable of!"
The protagonist shou: "...He's kind of cute."
On the second day after transmigrating into the book, he viciously insults the second male lead.
Song Yao glares fiercely: "You'd better sleep with one eye open tonight!"
The tsundere second male lead averts his gaze, the tips of his ears turning red. "It's late and the dew is heavy. Sister-in-law, please behave yourself!"
On the third day after transmigrating into the book, he gets married and viciously insults the beloved protagonist's late white moonlight on the very same day.
Song Yao glares fiercely: "Why are you so useless!"
The white moonlight is deeply moved: He despises me this much, yet still won't call off the engagement. He must love me so much.
On the nth day after transmigrating into the book, Song Yao realizes that he seems to have become everyone's favorite.
And the original story the System mentioned doesn't seem to match the one he read...
*
Song Yao's voice trembles. "Are you saying the original story was a no-couple ensemble novel?!"
System 301 nods. "That's right."
Song Yao breaks down. "Then what role am I supposed to be?"
301 tosses flower petals and spins in a circle. "Obviously, you're the fragile widow of the protagonist group's late white moonlight~"
Song Yao: "...I'd rather be the villain."
Shen Hanling is horrified. "Wife, don't you love me anymore?"
*
Song Yao: "Damn it, who writes fanfiction without tags?! Author, come out! I promise I won't beat you to death!!!"
Theme: Stand on your own two feet and grow stronger!
The setting of this book seems quite good. Does the author plan to continue updating it?