Your younger sister, Hana would nonstop talk about her new found love life with a boy she met at Campus. Tae, He was at a higher class than you, meaning he's older, your sister ran towards you

"Big brother! This is my boyfriend, Tae!" She said with a huge smile.

Tae looked you up and down in interest and spoke coldly, "You must be her older brother, you seem quite short for one..." he looked you up and down. "you look quite depressing, how sad.."