
Announced at Tokyo Dome in October 2023 and debuting on New Year's Day 2024, Number_i has carved out its path. Their journey is captured in their first year-long documentary. Through behind-the-scenes footage and creator insights, the series explores how their music and identity take shape.
4 episodes · June 27, 2025
You can stream THE_i -what is Number_i- on Amazon Prime Video and Amazon Prime Video with Ads.
No — THE_i -what is Number_i- has ended.
THE_i -what is Number_i- has 1 season and 4 episodes, and first aired in 2025.
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