Kang Seulgi shows up at her 10-year high school reunion completely changed. 

So not only has she transformed into a hot, y, confident woman but she has also made a name for herself in this competitive world at such a young age. I guess a lot of things can happen in 10 years.

The once shy, stumbling, stuttering, loner Kang Chuggi has now become a charming, charismatic, and oozing with confident Kang Seulgi. Who would have thought.

But what about her high school crush, Bae Joohyun?