I Reincarnated as the Villainess, but the Yandere Heroine Won't Let Me Go

[Transformation + female Villain + yandere + survival + System] (All characters are adults)

She transmigrated as Shen Qing, a wicked supporting heroine destined for a miserable end, and opened her eyes surrounded by three darkened heroines ready to kill her. The System's mission: survive at their hands! Shen Qing decided to give up resisting. If you can't beat them, join them! Act sweet, play helpless, pretend to surrender: whatever it takes to stay meek. Unexpectedly, her laid-back act only drove the heroines into an even fiercer competition for her. Watching them close in step by step, Shen Qing silently screamed at the System: Weren't I supposed to get a revenge-against-the-scumbags plot? Why are they looking at me more and more strangely!

I woke up to find that I, Shen Qing, had become a wicked supporting heroine about to be punished by three heroines working together. To stay alive, I play a harmless little weakling in front of them every day. Afternoon tea with the cold-faced student council president? Drink it! One-on-one training with the athletic senior? Endure it! The mysterious older sister checking on me in the middle of the night? Put on an act! I just want to lie flat until the ending, but it turns out things aren't that simple. When they all reach out to me at once, what am I supposed to do...? (Urgent, waiting for answers!)