Asian Drama

Gu Chang leads to a tragic existence. The seventh-year college student constantly fails job interviews and lives off of an allowance from his divorced sister while taking money from his little nephew. To make matters worse, the almost 30-year-old virgin has never had a girlfriend, let alone experienced his first kiss. In Korean, Gu Chang is a homonym for the word meaning "a sore in the mouth".

But springtime finally seems to have arrived for Gu Chang, defrosting the stark winters of his barren love life, when he meets the sweet and innocent Ah Ni.

All seems to be well, and Gu Chang gets a taste of heaven as he kisses his pretty girlfriend for the first time - until Ah Ni bites his tongue and gives him a nice kick, introducing herself as Ha Ni. And so begins Gu Chang's painful relationship with his split-personality girlfriend, dealing with Ah Ni's adorably childish demeanors one moment, then defending his life from Ha Ni's high kicks.

Kim Ji Su is a 31-year-old single woman who once wanted to become a famous pianist like Horowitz. Her dream was shattered but she was able to go on by teaching children to play the piano.

One day, she discovers a young boy, Gyung Min, who is a musical genius. She starts to give him intensive music lessons, preparing him for competition, but it does not turn out well. But later, when all seems lost, Ji Su is utterly shocked when she realizes that Gyung Min carries a secret that will change her life forever.