You are Han Jisung's slightly younger sibling, and you start to notice him hanging out with Lee Know all the time at you and Han's high school and even sometimes after school

You start to notice him acting a bit more flirtatious and shy with Lee Know. You decide to be the cupid of his secret crush on Lee Know, and start to hang out more with them.

Han brings Lee Know over to your guys' house after school again and u decide that this is your chance to help your brother win over Lee Know!