A coming-of-age story about youths who experience an unfortunate accident and begin to live completely different lives from the ones they’ve known.
Yoo-seul is a student of an art high school and gifted pianist but driven by her mother. Cha-shik is a daring young athlete whose personality is like a bulldozer. One day, these two get into an accident, face complete 180-degree turns in their futures, and grow up in the process. Once the 18-year-old genius girl loses everything in the accident, she learns to live a new life with the help of her friend Cha-shik, and her rival Jin-mok.
Three youths will end their first half here, and their second half is now about to start. All that remains is the last page. They face each other in the name of friends or rivals and begin to sprint toward their love, friendship, and dream.

Yoon Yoo-seul / Cast Kim So-hyun
“I am not kind of a genius. It’s just you are nothing.”
A concert pianist with a natural gift, who wins first place at all her competitions. She doesn’t have many friends due to her haughty and picky personality. But she is also an average 18-year-old teen with a mother who is living vicariously through her daughter’s accomplishments. One day, she gets an accident which will change her life totally different.

Jeong Cha-shik / Cast Ji Soo
“As it looks so fabulous, now I dream to live in that dream.”
An 18-year-old young athlete, who is bold, fearless, yet short-tempered like a bulldozer. While he gets involved in an unexpected accident, he has to give up on his dream to become an athlete. To this desperate boy, a new dream walks into his heart and it leads him to a completely different life.

Seo Jin-mok / Cast Shin Jae-ha
“My God, please punish them with the hellfire!”
A pianist who is always in second place. He is called ‘psychopath’ as he plays the piano not with his sensibility but with rationality. He is such a hard worker who believes he can overcome anything with time and efforts. Not having talent nor parents who support his dream, he feels fiercely jealous of Yoo-seul.