Tae-yeul, a swordsman in his thirties goes out to find his only daughter after losing one of his eyes. Min Seung-ho, the Joseon dynasty's best swordsman chooses an ordinary simple life after perceiving the transient nature of power. Gurutai, the best swordsman in Qing dynasty aspires to become the best even in the Joseon dynasty.

In the late 1960s, C’est Si Bon is the music bar where every acoustic band’s dream lies. There Geun-tae, a naïve country boy, meets the young musical prodigies Hyung-joo and Chang-sik, and forms the band named after it -- the C’est Si Bon Trio. As the three young artists bicker over their music, beautiful socialite Ja-young enters the picture and becomes their muse, and a series of moving love songs come from it. Geun-tae’s pure-heartedness wins Ja-young over but when she accepts a once-in-lifetime opportunity for a shot at an acting career, they part ways. After 20 years, the untold story of their love, song, and youth at C’est Si Bon is finally brought to light.

When his client suddenly confesses to murder in open court, a hotshot attorney embarks on a search for truth to redeem his ruined reputation.