Chuu (LOONA) - 고백 (Confession) (Movie 'Ditto' X Chuu (LOONA))
Chuu (LOONA) - 아라리 (Arari) (Gaeul)
Chuu (LOONA) - 시간을 거슬러 (Back in Time) (Gaeul)
Chuu (LOONA) - 브런치 (Brunch) (OST Daily JoJo Part.1))
Chuu (LOONA) - 일과 이분의 일 (ONE AND A HALF)
Chuu (LOONA) - 좋아서 좋아해 (I Like It) (OST Revolutionary Sisters Part.5)
Chuu (LOONA) - 봄꽃 (Spring Flower) (OST Memorials Part.4)