Houshou Marine and Kobo Kanaeru's voices collide like they're competing for the same space, trading lines with a friction that feels genuinely hostile. HASU's direction doesn't soften it, the visuals match that tension, refusing to make their conflict pretty or resolved. This isn't a duet. It's two singers who refuse to harmonize, and the song is built on that refusal.

III is a music video for the song of the same name, performed by Houshou Marine and Kobo Kanaeru. HASU directed the video, which is a single episode released in the music format.