Four minutes long and it still rearranges your ribcage. Gyakkou is the Uta track where the pop idol act burns off and something harder shows up underneath, and Ado sings it like she's wrestling the song to the ground, that whiplash from a shredded growl into a clean ringing top note that basically nobody else is pulling off. It's the cut fans reach for first off Uta's Songs, the One Piece Film: Red highlight that outgrew the movie it came from. And the animation is built around the vocal, not laid over it, so every gear change in Ado's delivery gets answered on screen instead of just decorated. That's why it works as a standalone piece and not a promo clip. You'll watch it once for the song, then again with the volume at a level your neighbors will remember.

Backlight is a single-episode drama music video set to Gyakkou, a song credited to Uta and performed by Ado. The whole release is one short piece built around that track rather than a story told over several episodes.