How Do I Survive After Becoming the Protagonist's Underwear?

Recommending my own historical romance transmigration-into-a-book novel, "The Supporting Character's Daily Face-Slapping" Blurb: Ye Lanxi transmigrates into a story and becomes its villainous female supporting character. Her stepmother wants to ruin her, while her younger half-sister, the female protagonist, keeps tormenting her. To stay alive, she has no choice but to fight her way to a chance at survival, until she meets the lovesick prince who is bent on winning her over. The prince has three virtues: he's gentle, considerate, and easy to push down. Ye Lanxi is torn. Should she... just give in? Historical danmei novels coming soon: "Transmigrated into the Farmer Hero's Former Husband" "The Big Shot Turned Dark for Me" Blurb: When other people transmigrate, even if they aren't the protagonist, a supporting character, or a villain, the worst they get is a random extra. But when Lin Chuyang transmigrates, he becomes the thing closest to the protagonist, the most comfortable and slippery, fragrant... underwear, along with a System that's devoted to pairing the protagonist with love interests. Notes: 1. The protagonist is the bottom, and I'm committed to a one-on-one pairing. 2. The top is the male protagonist of the book, and his attributes are currently unknown because he has been reborn! 3. This isn't a highbrow novel, so expect absurdly clichéd melodrama and no logic. Bring your own warning signs before entering. Recommendations: "Transmigrated into the Female Protagonist's Cannon-Fodder Daughter-in-Law" by Yueliang Shang de Yezi (romance) "I Transferred Myself" by Yan Chi (danmei) "The Poor Couple's Daily Face-Slapping" [Interstellar] by Feise (danmei) "The Great Master's Guide to Pursuing His Love" [Online Dubbing] by Ji Xiaoge (danmei) "Reported by Thousands" [PUBG] by Cha Yu Fei Yu (danmei) Theme: