frozen scilla (KaKi vs. Sakamiya feat. 向日葵)
My Hope Star(Jewel Voices ver) (Kohaxy vs. Sakamiya)
ロンロンロキロンセイグッバイ (Sakamiya feat. あやぽんず＊)
Hades of decapitation (Sakamiya feat. 一花)
Libidinousness (Sakamiya feat. 一花)
Plerocercoides prolifer (Sakamiya feat. 一花)
Tsar B0mba (Sakamiya feat. 一花)
in the tranquillity (Sakamiya feat. 仲村芽衣子)
Varying tones (Sakamiya feat. 葵一花)
Gallantry (Sakamiya feat. 蓮実えれな)