Go Si-Won's dreams are constantly visited by the clever, beautiful Kang Jin-Ha. In the dream, Jin-Ha keeps on mentioning this "incident" that happened between them but Si-Won can't remember anything! And how can it feel so real? Luckily for Si-Won, hints about the "incident" start to appear and Si-Won is able to regain his memory bit by bit. How will their relationship change at the end of it all?

(Source: Lezhin US, edited)

Note: Chapter count includes 3 extra chapters