Desperate to protect his father’s future and ensure his own existence, Eun-gyeol embeds himself into Yi-chan’s life. He poses as a mysterious, cool guitarist named "Dong-jin" and helps his father form a band to pursue his musical dreams. The band is named —a nod to the drama’s title—and includes a quirky ensemble of friends: a genius bassist, a hot-tempered drummer, and a classical pianist[citation:1][citation:6].
The silent world is not an empty one. For Eun-gyeol, a CODA (Child of Deaf Adults), sound was never something to be taken for granted; it was a bridge he was forced to build with his own hands. Growing up as the only hearing member in his family, he carried the weight of being their voice, their interpreter, and their shield against a world that rarely stopped to understand them. But in the quiet spaces between his heavy responsibilities, Eun-gyeol found a voice of his own through the electric cry of a guitar. Twinkling Watermelon
The story begins with Ha Eun-gyeol (Ryeoun), a high school student who seems perfect. He is a model student by day, but by night, he is a passionate guitarist in a band. However, Eun-gyeol carries a heavy weight: he is a [citation:1]. Desperate to protect his father’s future and ensure