Number_i's popular song ranking. A compilation of masterpiece tracks that transcend genres.

iLYNEW!Number_i22rank/position

iLY

The KOSE SEKKISEI commercial “i Bright.

Facing forward, with this skin.”, which features close-ups of the three members of Number_i, is striking for its transparent, lucid visuals.

The lighting, which seems to capture reflections on a water surface, is especially memorable, and combined with the white background, it creates a very fresh atmosphere.

The BGM uses “iLY” from Number_i’s album “No.I.” It’s a gently soothing, mid-tempo ballad that showcases a different kind of charm from their previously talked-about tracks.

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Hane Keisuke

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Pink Strawberry Chocolate FridayNEW!Number_i23rank/position

Pink Strawberry Chocolate Friday

This is a solo track by Shiyoh Hirano.

Centered on the sweet, bittersweet memories of a past love, it conjures scenes like walking hand in hand along the railway—just like a moment from a film.

The structure is superb, unfolding from rap-like spoken lines into a beautiful chorus, and his husky, gentle vocals further heighten the song’s melancholy.

The track is included on the album “No.Ⅱ,” released in September 2025.

When you want to quietly look back on an old love, listening to it will surely keep you company.

Romeo and JulietNEW!Number_i24rank/position

Romeo and Juliet

This song starts with a cute-sounding intro, so compared to other Number_i tracks, it gives a different vibe.

The chorus is especially straightforward and is melodic rather than a rap.

The A section and rap parts are generally low—around A3 to E4, I think.

The highest notes go up to about D5, but low-voiced male singers don’t need to worry that it’s “too high to sing.” If you like rap styles, this is a track where you can enjoy both rap and melody, so definitely give it a listen!

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Kubota Mami

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The continuation of the dreamNEW!Number_i25rank/position

The continuation of the dream

Number_i is drawing attention for their sophisticated dance performances and genre-defying musicality.

While many of their tracks lean heavily into hip-hop, this piece is perfect for those seeking a gentle sound that stays close to the heart.

It’s a ballad that closes out their mini-album “No.O -ring-,” released in May 2024, and is also known for being produced by Yuta Jinguji.

Its poignant world—overlaying rainy scenery with the continuation of a dream—quietly seeps into the listener’s heart.

The lingering aftertaste, deliberately placed at the very end of the album, is superb.

On a night when you want to forget the busyness of daily life and relax, take your time and really listen.

Unidentified areaNEW!Number_i26rank/position

Unidentified area

A lead single released digitally in August of the same year, ahead of their second full-length album “No.II,” which came out in September 2025.

The heavy sound—digital beats infused with trap and R&B elements layered with the groove of live instruments—really leaves an impression.

The lyrics convey a resolve to step into uncharted territory, and the world the song creates through the members’ silky falsettos and deft rap instantly draws listeners in.

Above all, the track’s appeal lies in the deeply satisfying low end that resonates from within your body.

With headphones, you can sink into an almost otherworldly sense of immersion.

While there’s no specific tie-in, the MV’s inventive visual beauty has garnered global attention.

It’s a recommended number for when you want to fire yourself up or for late-night drives.

Unidentified Area (U.M.A.)NEW!Number_i27rank/position

Number_i – Unidentified Area (U.M.A.) [Official Music Video]

Introducing Number_i’s defiant track where grand strings collide with hard-hitting rap.

Released in August 2025, this song is a lead single from the September album “No.Ⅱ” and reached No.

1 on the Billboard Japan Hot 100.

Created through extensive discussions among the three members, it ventures into new territory with elements like live instrumentation.

The striking contrast between calm and intensity stands out, and the catchy hook will stick in your head after just one listen.

Play it at the peak of a party and it’s guaranteed to send the energy through the roof.

It’s also a perfect pick for a dance performance!

I want to become invisible.NEW!Number_i28rank/position

I want to become invisible.

A solo number by Shiyoh Hirano that drew major attention for being produced by singer-songwriter Vaundy.

Layering everyday scenes and changing skies, it delicately expresses the wish to melt into the presence of someone special, sung over a soothing band sound.

Included on the album “No.I,” released in September 2024, the track debuted at No.

1 on the Oricon Weekly Digital Singles chart and has been loved by many listeners.

Give it a listen when you feel a bit worn out by busy days or want to quietly reflect alone at night.

Hirano’s gentle vocals will softly stay by your side and calm an anxious heart.