Ying Xiaoxia has a crush on Fu Sibai, the boy next door, who is five years older than her.
Fu Sibai is handsome and steady, and he's always been kind to her. But he seems oblivious to her feelings. He's like a block of wood around all girls, not just her.
Ying Xiaoxia quietly nurses her crush on Brother Fu, eagerly waiting until she gets into college to confess.
But one day, Fu Sibai brings home a cool, mature older woman named Shen Qing.
They're intimate with each other.
Uneasy, Ying Xiaoxia secretly asks what their relationship is.
The woman sees right through Ying Xiaoxia's feelings. With a knowing, indulgent smile, like she's humoring a little girl, she asks, "You like him?"
The woman is friendly and guides her like an older sister. Her thoughtful words put Ying Xiaoxia at ease, and before she knows it, Ying Xiaoxia has told her everything about her crush.
The woman says, "I don't like him. You don't have to worry."
She kindly encourages Ying Xiaoxia to pursue Fu Sibai.
Encouraged, Ying Xiaoxia feels grateful and friendly toward her. On the day her college acceptance letter arrives, she goes to confess to Fu Sibai.
But she sees the usually calm and taciturn man gripping the woman's waist as they kiss, their lips and tongues entangled. The woman teases him with a breezy laugh: "Aren't you going to celebrate with your little girlfriend?"
He kisses her fiercely, his voice low: "Don't just hand me off to some other woman."
They kiss passionately, treating Ying Xiaoxia's feelings like a joke.
To test each other's feelings and confirm the tangled nature of their relationship, one deliberately encourages Ying Xiaoxia to confess, while the other acts even more familiar with Ying Xiaoxia than before to make the first jealous.
Ying Xiaoxia is the catalyst for their passionate love, their way of turning each other on, and the topic of their intimate conversations in bed.
Ying Xiaoxia stands there watching for a long time, then tears up her love letter.
So when Fu Sibai confronts her much later and asks when she started becoming like this,
Ying Xiaoxia rests her chin on her hand and replies,
"If you don't love me,"
"at least don't make me part of your game."
Theme: Those who trample on a sincere heart deserve to swallow ten thousand needles