Cables and AC adapter should be 100V for Japan.
Taisho Koto Japanese Harp with a hard case 古賀政男
Mini Koto 66.5cm / 26.18"L ZEN-ON Bunka-Koto Japanese Traditional Harp
Suzuki Taishogoto Taishokoto Sakura Acoustic Japanese Harp Koto with case
Taishogoto Kikuyae Japanese Harp Koto Acoustic with case
Taishogoto Taishokoto Japanese Harp Koto Acoustic with case
Suzuki Taishogoto Taishokoto TOKUMATU Acoustic Japanese Harp Koto with case