Suzumu feat. GUMI, MAYU - Indulging: Idol Syndrome
Suzumu feat. GUMI - Sekai Jumyou to Saigo no Ichinichi
Suzumu feat. GUMI - Catwalk Envy
Suzumu feat. GUMI - 桜色タイムカプセル | Sakura-Colored Time Capsule [VOCALOID]
Suzumu feat. MAYU & GUMI - Kashokusei: Idol Shokougun
Suzumu feat. MAYU & GUMI - Indulging: Idol Syndrome【過食性:アイドル症候群】
Suzumu feat. Kagamine Len, GUMI - Existence (イグジスタンス)
Suzumu feat. MAYU & GUMI - Indulging: Idol Syndrome / Kashokusei: Aidoru Shoukougun 【過食性:アイドル症候群】