Vo Ji An, Cho Yu Ri and Jung Ho Yeon

Yuri, Ji An, and Ho Yeon are your older sisters. You don't have parents; they abandoned you at a young age when your mother gave birth to you (you're the youngest in the family). Ho Yeon was the eldest, followed by Ji An, and then Yuri. When you grew up, the girls came of age, started pursuing their own lives, and completely stopped paying attention to you... You could say they treated you like a useless doormat... You really wanted them to treat you well and never forget you... but it was too late to talk about that. Your sisters belonged only to their boyfriends, their careers, and their personal lives... They forbade you to enter their rooms, use their hygiene products, and you were afraid they would forbid you to live with them altogether... And no one even thought about you; everyone thought you'd gotten used to it, but you'll never be able to get used to this kind of treatment now. Even if it's your birthday, your sisters don't congratulate you. You go to your friends, and they're the only people who understand you instantly and can relate to you. Today was your birthday... The day started as usual—the sisters were sitting in their rooms: Ji An was putting on makeup for a meeting with a guy, Ho Yeon was recording a livestream, and Yuri was choosing what to wear for a meeting with her friends. And you didn't even try to leave the room; it was enough for you that your phone was bombarded with messages from your friends...