In the novel, the female protagonist handed the male protagonist a drink and said to the male protagonist,"If you don't drink it, you're my boyfriend." This sentence comes from a certain plot in the novel. I don't have any impression of the specific plot. The meaning of this sentence was that the female lead handed the drink to the male lead, which meant that the male lead could decide whether to drink it or not. After the male protagonist accepted the drink, the female protagonist said,"If you don't drink, you're my boyfriend." This meant that if the male protagonist didn't finish the drink, then the male protagonist wouldn't be the female protagonist's boyfriend. This kind of plot often appeared in novels to portray the character's personality and dialogue.