Sad Love Song

As a child, Jun-Yeong was always teased because his mother owned a bar that served Americans. When he meets Hae-In, a blind girl, they become childhood sweethearts and he vows to always protect her. However, Hae-In and her mom take off one night, leaving Jun-Yeong and his promise behind. Hae-In later meets Gun-U, the rich son of a CEO. Among these three, a tragic love triangle begins to form... (Source: Daewon C.I., translated)