*Both leads are sexually inexperienced, the love interest is younger, and both characters are adults.
Blurb:
Shen Li sneaks a kiss on her childhood friend, whom she's secretly loved for years. Through a twist of fate, she kisses her friend's twin sister instead.
Her friend's younger sister was raised away from home and only recently returned to the He family. Shen Li doesn't know much about her.
After kissing the wrong person and getting caught, Shen Li is mortified. She stammers, "Can you keep this a secret for me?"
The girl pins Shen Li against the wall and leans close to whisper in her ear. Shen Li is sensitive around her ears and nearly goes weak in the knees.
"Sleep with me, and I'll agree."
Shen Li: ?
Is she crazy?
Shen Li slaps the lunatic. Instead of getting angry, the girl smiles, grabs the hand that struck her, and seals Shen Li's lips with a kiss.
Dou Yuxin and He Jing are sisters with the same face, but their personalities couldn't be more different.
He Jing is kind, gentle, and always smiling. She's popular with everyone.
Dou Yuxin is always stone-faced, her oppressive aura making people avoid her.
In the dim school gym storeroom, Dou Yuxin corners Shen Li against the wall.
Dou Yuxin: "Guess how my sister would react if she knew you had feelings like that?"
Shen Li can barely stand after being kissed. Her voice trembles: "You... shameless bastard."
Dou Yuxin kisses her even more deeply, smiling slyly.
"Thanks for the compliment."
After that, Shen Li often kisses Dou Yuxin, at school, outside school, and even in He Jing's bedroom.
When things go further, Dou Yuxin likes to gently bite Shen Li's cheek and whisper in her ear, "Beg me, or I'll stop."
On Shen Li's nineteenth birthday, she receives a confession from He Jing.
He Jing holds a bouquet of roses and smiles tenderly. "Stop fooling around with my stand-in. I like you too."
Shen Li takes the bouquet and watches Dou Yuxin's back disappear into the bustling crowd. She doesn't look back even once.
Shen Li always thought Dou Yuxin saw her as nothing more than a toy she could amuse herself with.
Until graduation, when she is cornered against a wall again.
"Sister Xiaoli, can you tell me why you turned down He Jing?"
Dou Yuxin has lost the confidence she had the first time. She clutches Shen Li's arm, nervous and uneasy.
Shen Li pushes her away and imitates her usual manner, folding her arms and sneering.
"If you're going to ask for something, you should act like you're asking for something. Remember how you taught me?"
Reading guide and content warnings:
1. This is not a stand-in romance. The love interest and her sister have distinct personalities, and the protagonist can tell them apart clearly.
2. More to come.
Screenshot saved on April 11, 2026.
Theme: Cherish every sincere relationship
