Romantic comedy 1. 잔인한건가봐 (Feat. Hollow Young, 노윤하) Lyrics by Hollow Young, 노윤하 Composed by 그리오 (GRIO), Hollow Young, 노윤하 Arranged by 그리오 (GRIO), Hollow Young Piano by GRIO String by GRIO Bass by GRIO Percussion by GRIO Guitar by Hollow Young 2. 방안엔 (Feat. Hollow Young, 123) Lyrics by Hollow Young, 123 Composed by 그리오 (GRIO), Hollow Young, 123 Arranged by 그리오 (GRIO), Hollow Young Piano by GRIO String by GRIO Bass by GRIO Percussion by GRIO Guitar by Hollow Young Artwork by HAEIN Mixed, mastered by 전찬민 @ Mat Kor Studio