Root (from Sutopuri) Collaborates with OHASTA Morning Show — New Theme Song “First Step” Debuts April 7

Japanese idol group Sutopuri’s multi-talented member Root (るぅと) is bringing his voice and songwriting skills to mornings across Japan! It was officially announced today that Root will be providing the new theme song for OHASTA, the long-running live-action variety show for kids airing on TV Tokyo.


🌞 A Bright New Start for Mornings

Titled “First Step”, the upbeat theme song was written and composed by Root, with arrangement by fellow musician Matsu. The song will premiere live on air during the April 7 (Mon) broadcast of OHASTA, alongside a special dance performance by the show’s youthful cast, the OHA Kids.

Root, who has built a huge fanbase through Sutopuri and his solo music, shared his excitement:

“I grew up watching OHASTA, so getting the chance to create the theme song is a dream come true. I hope this track helps kids kickstart their mornings with a smile!”


🕺 OHA Kids — Morning Energy Ambassadors

First introduced in 2024, the OHA Kids are five junior high school students who serve as regular cast members and perform on-air segments, dances, and more. Each member brings their own spark and personality to support elementary school viewers as they begin their day.

Meet the OHA Kids:

  • Kokona Anbo

  • Toa Igarashi

  • Nene Hara

  • Ryusei Miyamoto

  • Ritto Morishima


📺 About OHASTA

Launched in 1997, OHASTA is Japan’s leading live morning show for children, broadcast nationwide every weekday on TV Tokyo. With trending toys, game updates, special guest appearances, and silly live skits, it’s a staple of childhood for generations of viewers.

  • Broadcast: Monday–Friday, 7:05–7:30 AM JST

  • Main Host: Subaru “Subanii” Kimura

  • Official Website: www.ohast.jp

  • Produced by: TV Tokyo & ShoPro


🎵 About the Song

  • Title: First Step

  • Lyrics: Root

  • Composer: Root, Matsu

  • Arranger: Matsu

Listen out for the energetic “Oha!” line — it’s meant to be shouted together with viewers at home!


🌟 Anibu’s Take:

This collaboration perfectly blends Sutopuri’s musical charm with the childhood nostalgia and energy of OHASTA. Whether you’re a longtime fan of Root or just enjoy cheerful J-pop for kids, “First Step” might just be the theme song your mornings need.

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