My older sister is a villainous rich girl

“You’re a villain.” Wayne pointed at a girl who was elegantly eating a cookie.
The girl nodded in agreement, making "hmm" sounds with great joy.
“You’re a villain too.” He moved his finger to a small white dog on the table that was licking the rim of a cup.
The puppy raised its head and barked twice at him.
Wayne's expression suddenly changed: "What! I'm a villain too!?"
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Is it a mistake to be stuck in a romantic comedy with the protagonist when you're holding a villain's script?