After Becoming the Female Supporting Character, I Achieved a Happy Ending with the White Moonlight [GL]

【Upcoming Projects: "After Transmigrating into a Scummy Alpha, the Female Lead Omega is Overflowing with Tea Scent" and "After Transmigrating into a Book, I Got Entangled by an Obsessive Mermaid GL" – preview synopses at the bottom!】 Synopsis: Gu Xiaoting transmigrated into an early-era cliché tragic novel. She became the "top contributor" obstructing the male and female leads' relationship—the vicious supporting female character. The original character was a fake rich heiress, who, while playing the role of the villainess, also served as a stand-in for three years. Willingly and without complaint. ...Only to end up dead without a complete corpse in the end. Gu Xiaoting: ...? The ...