bluebunny - 물거품 (Bubble) (with Kim tae ryeon)
bluebunny - 우리였음을 (It was us) (With Jeon Na Rae)
bluebunny - 여름 기억 (Summer) (With GICHUL NA)
bluebunny - 이별 밤 (Parting night) (With Jeon So Hyun)