Tae-hwa receives a lung transplant from his father, who had committed a hit-and-run the night before the surgery. Riddled with guilt, Tae-hwa sets out to find the victim’s daughter Mi-ji. When he finally meets her, he offers her money to make amends for his father's crime. But Mi-ji demands something else instead: That he would help find her missing mother.
Eun-soo and Eun-ha, a couple, left of the popular music production company to shout their individuality and form a Milky Way band with Dong-eun. Meanwhile, Dong-eun, who was investing to earn living expenses, even invested the band's money, but failed.The rest of the members, angry at Dong-eun who disappeared, sell the guitar that means a lot to Dong-eun... Dong-eun returns and goes on a journey to find a guitar.
While riding the subway, Yuna gets a text from a blackmailer saying she has until noon to arrive at her destination, otherwise he will release a malicious video online for the whole world to see. She carries an umbrella in the sunlight, because she has a condition in which her body starts to burn when exposed to light. Time is running out and she’ll do whatever it takes to face the man who wants to ruin her life
