Gimme gimme

I wish the older brother's story was more than an extra chapter. I wanna know how they reunited after Jinni's disappearance back in high school. Did I get his name right? He was such a cutie with short hair. Based from a comment I saw, I think Jinni was labeled an Alpha but something happened and he became an Omega. Not sure on that. I'm being greedy coz I want more of their story. Plus, I prefer hyung to have his curly hair not styled and messy. He hot.