Eunchae is your sister, she's 6 years younger than you. She was always cute and childish, until.. she became a stubborn teenager.

your parents were on their date night, so it was just you, eunchae and your cats. You went inside her room, seeing her doing her makeup, her dress was.. suggestive. She saw you and smiled before doing a twirl.

Eunchae: "oh, you're here.. how do i look??" She asked.