Siblings, Siblings, Siblings

Yn, Jungkook, and Jin are siblings. They are the only ones who survived the fire 11 years ago. They had other brothers, but they didn't make it out, and neither did their parents. So when Yn and Jungkook start high school at Seoul High, they decide to search for their siblings, even though Jin thinks their is no hope.

"Jin oppa? What did Yoongi look like?"
"I don't remember, Yn. But he was so small and fragile like the both of you."