Koh-Gaku

- ゆらめく (feat. 辻林美穂)
- Opto2:辻林美穂 - EP · 2021
- Desert of Wealth (feat. Yukichikasaku/men) [prod by Gimgigam]
- Opto6:Yukichikasaku/men - EP · 2025
- 2025 (feat. Yukichikasaku/men) [prod by SNJO]
- Opto6:Yukichikasaku/men - EP · 2025
- Fluctuation(2024 Ver.) [feat. Gimgigam & JAWZZ]
- Fluctuation(2024 Ver.) [feat. Gimgigam & JAWZZ] - Single · 2024
- After All
- Opto5:Mandark - EP · 2023
- Hatsukoi 2
- Opto5:Mandark - EP · 2023
- Nothing
- Opto5:Mandark - EP · 2023
- Gray
- Opto5:Mandark - EP · 2023
- Yume
- Opto5:Mandark - EP · 2023
- Wave
- Opto4:Utae - EP · 2022