Koh Haewon is a 18-year-old high school student who is very beautiful but has a cold exterior that drives others away. Due to her first heartbreak, Haewon fails to trust boys and her character drastically changed. She makes herself as unattractive as possible and shows no interest in men. 

Until she meets a mysterious guy who goes by the name of Kim Taehyung who is merely stuck as a "time prisoner" since 2008 and cannot be seen by anyone unless you have a special place in his heart.

As Haewon grew close to Taehyung, the latter started to fall in love with her and begs the Goddess to let him go but the Goddess is worried of what might happen to Taehyung once he’s freed. She warns him that he will be forgotten by everyone in exchange for his freedom. The memories of himself and everyone connected to him will be replaced by a new one. 

And if something bad happens to him, Haewon's memories of him, will vanish.

Will he be able to make Haewon remember him forever? Or rain will pour its shattered pieces down on top of him?