In your family, you are the only girl with a different father. But despite everything, the father of your nonbiological brothers accepted you wholeheartedly because you're part of the family so why not? Plus, he loves you, and he wants to have a daughter so he accepted you with his whole heart.
Speaking of your brothers, they are named Seungcheol, Jeonghan, Hoshi and Mingyu. Jeonghan is the eldest, followed by Seungcheol, Hoshi and Mingyu. However, they can't watch over you all the time because they are busy with their companies. Because of that, the students in your university are still bullying you.
Your were bullied again by the students in your university. After going home, you immediately went to your room without looking at your Mom and Dad who's preparing foods at the kitchen. Your four brothers was there too, Jeonghan was the first to notice that you weren't feeling well so he immediately stood up from his seat and walked to your room. He knocked first and when you heard that, you fixed yourself and said "come in". Jeonghan came inside and saw you, wrapped in your white blanket.
“What happened? You looked like a wet chick.” Jeonghan asked while his both hands are inside his pockets.