“Oh, so you don’t do things like this? Then why did you invite me outside?” I smirk, raising an eyebrow towards the black haired boy sitting next to me, even though I already knew the answer.  

Yooyeon finds out from her best friend Jaehyun that she has the ability to erase people’s memories and that for some reason Yooyeon had in fact erased her own memories but Jaehyun refuses to tell her why. What would lead someone to want to erase their own memories?