Whispers of Void Signal (Balalaika & Matsui.K & Myx4)
Sable Cruor (Matsui.K & JamKeen feat. JamKeen)
Primordial Elegy(LillyRazy Remix) (Matsui.K & SDF)
Primordial Elegy(Matsui.K Remix) (Matsui.K & SDF)
Primordial Elegy(MΣG² Remix) (Matsui.K & SDF)
Primordial Elegy(Original Mix) (Matsui.K & SDF)
Primordial Elegy(SDF Remix) (Matsui.K & SDF)
Primordial Elegy(Sunkt8 Remix) (Matsui.K & SDF)
Primordial Elegy(Type-RUKU Promise Elegy Remix) (Matsui.K & SDF)
Primordial Elegy(rein jack Remix) (Matsui.K & SDF)
Dead Flowers Rising (Matsui.K & DJ AIR-G)
Dead Flowers Rising (Matsui.K & DJ Air-G)
The Endgame Protocol (Matsui.K & Dragon_Klub)
Be under no Illusions (Matsui.K & FALCH1ON)
Be Under No Illusions (Matsui.K & FALCHiON)
レライカの災禍 (Matsui.K & Garbagecan)
Embers Still Burn (Matsui.K & Pho feat. HnyLmn)
Primordial Elegy(Original Mix) (Matsui.K & SDF)
Primordial Elegy(Radio Edit) (Matsui.K & SDF)
Sable Cruor (Matsui.K & U feat. JamKeen)
The Blood Covenant (Matsui.K & Yusuke Matsuda)
Embers still burn (Matsui.K & pho feat. HnyLmn)
Harder Resonance (Matsui.K & ses)
Cathedral(Full Story Extended) (Matsui.K feat. 愛莉)
Cathedral(Prologue) (Matsui.K feat. 愛莉)
Vale Tudo (Matsui.K, UK, Bert (59), Autum-N-clouD. & Rizardi)
ザーグに沼れ！ (Rizardi, GoldenEggs & Matsui.K)
ザーグに沼れ！ (Rizardi, GoldenEggs & Matsui.K)