Ryôhei Higashino

2021

• [ ] Hitozuma ichiban! Futarikiri Tonight (????) 

2022

• [ ] Drive In California (????) 
• [ ] Saaya & Koharu (????) 

2024

• [ ] Saaya & Koharu: – Forever and Ever (????) 

2025

• [ ] Oshi, Mankai (Renjiro Uchiko) 
• [ ] Saaya & Koharu: Final Chapter ~Beyond the End~ (????) 
• [ ] Mōsō fanfare (????)