송아(박은빈)와 준영(김민재)은 서로의 비밀을 공유하며 한 층 더 가까워진다. 한편 준영과 현호(김성철), 정경(박지현)은 트리오 연습을 위해 한자리에 모이지만 미묘한 신경전과 함께 곧 연습은 엉망이 되는데...
Joon Young ends up joining Song Ah's friends for her birthday dinner. Awkwardness hangs in the air between Song Ah and Dong Yun, and it's not much better for Joon Young and Jung Kyung either. Meanwhile, as Joon Young prepares for his talk concert at his old middle school, he tells Song Ah how he truly feels about his career as a classical musician.
