Shy Ji-hae’s friend is having problems expressing her feelings to the boy she loves, so she asks Ji-hae to write e-mails to him in her name. As the boy falls in love with her letters, Ji-hae discovers the story of her mother’s romance which is remarkably similar to her own circumstances.

Yuri leaves Ryo with mysterious words. Ryo goes to Hokkaido knowing that his doppelganger magician is missing. Ryo realizes Yuri was also the magician’s lover and he learns magic. The story that crosses over two identities, illusion and magic.

Cyborg She follows the burgeoning romance between an ordinary college student and his sassy love interest – who happens to be a time-traveling cyborg with superhuman powers. One day, a beautiful cyborg girl appears in front of a dull university student. Even though the cyborg starts to like him, she can’t truly feel emotions, so the boy has no choice but to say goodbye. Missing her, he continues his lonely existence. One day, a disastrous earthquake hits Tokyo and the cyborg girl saves his life. In that moment, she starts to have feelings like a real human being.

In 1983, high school teacher Ji-hwan is attacked by a pickpocket. In 2015, homicide detective Gun-woo is shot during a chase and loses consciousness. Both men are taken to the same hospital in different time periods, and both their hearts stop and miraculously start again at the same time. A mysterious force binds them together, allowing them to see through each other’s lives in their dreams. Soon realizing that the women they love strikingly resembles each other and that they are in fatal danger, the two men must team up to trace the past and change her destiny.

Based on a series of true stories posted by Ho-sik Kim on the Internet describing his relationship with his girlfriend. These were later transformed into a best-selling book and the movie follows the book closely. It describes the meeting of Kyun-woo and an unnamed girl. Kyun-woo is shamed into assisting the girl because the other passengers mistakenly think she is his girlfriend.