ONE OR EIGHT released their new single "Yellow Brick Road" on October 7. The song serves as the ending theme for the second season of the anime Black Clover and marks the group's first Japanese-language song.

Inspired by Black Clover protagonist Asta, who continues pursuing his goals despite being born without magic, "Yellow Brick Road" centers on moving forward through uncertainty and finding strength in the people who remain by your side.

The mid-tempo ballad also reflects ONE OR EIGHT's own journey, with the song's message extending to 1DERZ, the group's fans who have supported them along the way.

"Yellow Brick Road" follows the release of ONE OR EIGHT's first EP, EN-GÏNE, on September 16. The group will also hold their ONE OR EIGHT Special SHOWCASE 2026 in ASIA -V8- later this month, visiting Singapore on October 21, Manila on October 23, and Bangkok on October 25.