- 夕暮れ鴉WELCOME脳×yoshikiNot Selected3collabYSK aka F-hack
- LOOPSIRUPChorus3collabYSK aka F-hack
- 点描の唄 コラボ用Mrs. GREEN APPLE feat.井上苑子Chorus2collabYSK aka F-hack
- Repetition【オリジナル】竹 & YSK aka F-hackChorus3collabYSK aka F-hack
- かくれんぼ。優里Vocal2collabYSK aka F-hack
- YES MAN187×YSK aka F-hackVocal2collabYSK aka F-hack
- Lonely - Remix -7mON × YSK aka F-hack(prod.CЯOW♛︎BEATS)Chorus2collabYSK aka F-hack
- What do you think?DJ187×F-hackVocal1collabYSK aka F-hack
- 1more【オリジナル】※コラボ用竹 & yoshiki aka F-hackChorus3collabYSK aka F-hack
- MIC ЯELAYCЯOW✻BEATSVocal2collabYSK aka F-hack