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Vocaloid songs that start with "ku"

When you feel like “I want to add more favorite songs,” how do you look for new tracks?

Maybe you search on social media or video sites, or ask your friends for recommendations.

Some of you might just go through all the suggestions from your subscription services.

In this article, I’m going to introduce lots of Vocaloid songs that start with the syllable “ku” (く)!

It might also give you ideas for your karaoke picks, so be sure to read to the end!

Vocaloid songs starting with “Ku” (1–10)

Letter Addressed to the Blacked-Out Worldfurokuro

How could someone come up with an idea like this…? Released in April 2022, this work by Furokuro expresses the “redaction” in its title as a censor beep in the vocals, leaving you irresistibly curious about its true meaning.

What exactly are the words being blacked out in the lyrics…? Furokuro’s pieces are all peppered with clever twists that make you suddenly gasp when you notice them, so be sure to delve into your own interpretation.

It’s a thought-provoking take on a regulated society and freedom of speech that is guaranteed to spark listeners’ imaginations.

Write it as “regret,” read it as “future.”25 ji, naitokōdo de. × Hatsune Miku

Write 'regret' and read it as 'future' / 25:00, Nightcord at 25 × Hatsune Miku [3D MV]
Write it as “regret,” read it as “future.”25 ji, naitokōdo de. × Hatsune Miku

Kuyamu to Kaite Mirai (Write “Regret” and Read It as “Future”), written and composed by Mafumafu, who is active as a vocalist.

It’s a grand, dramatic rock tune that highlights Niigo’s cool edge.

The lyrics dwell on backward-looking emotions that question the meaning of life, paired with an energetic sound—the contrast is irresistible.

Despite its speed, the melody doesn’t demand an extremely high top note, so give it a try.

Aim for a powerful vocal delivery that won’t be overwhelmed by the sound!

Nutcracker QueenNanahoshi Orchestra

Nutcracker Queen / Kagamine Rin – Nanahoshi Orchestra
Nutcracker Queen Nanahoshi Orchestra

You’ll be startled by the bewitching and provocative world that portrays the push-and-pull between the dominant and the dominated.

The track is by Nanahoshi Orchestra, a Vocaloid producer who also performs as guitarist Riku Iwami, and it was released in November 2025.

Included on the album “LADY BUG,” this piece is a gothic number sung by Kagamine Rin.

First, you’ll be drawn in by the sound arrangement, which incorporates elements of classical music.

Then you won’t be able to look away from the lyrics’ story, where nobility and danger coexist.

At just about two minutes and twenty seconds, it condenses a rich drama—so be sure to savor it.

Vocaloid songs starting with 'Ku' (11–20)

Ultramarine in the JellyfishNanahoshi Orchestra

Ultramarine in the Jellyfish / Kagamine Len – Nanahoshi Orchestra
Ultramarine in the Jellyfish Nanahoshi Orchestra

An emotional coming-of-age rock track by Kagamine Len, dyed in ultramarine with longing and pain.

It’s a work from Iwami Riku’s music project, Nanahoshi Orchestra, released in November 2025.

The lyrics leave a poignant impression as urban scenes—like wind tunnels between buildings, heat haze, and asphalt—intertwine with fragile motifs such as jellyfish.

A self that’s been changed, summer memories that won’t fade.

As the protagonist keeps chasing a shadow while on the verge of drowning, my own memories overlap with theirs.

Give this fast-paced guitar rock a listen!

Club CassiopeiaNayutan Seijin

Nayutan Seijin – Club Cassiopeia (ft. Hatsune Miku) OFFICIAL MUSIC VIDEO
Club CassiopeiaNayutan Seijin

A song with an intro that starts with a catchy melody, making a strong impact.

For guitar, focus more on rhythm than on the phrases when practicing.

The bass line moves around quite a bit, so make sure to keep a solid beat.

Drums require practice because you need to play the hi-hat tightly to create the right atmosphere.

The vocals are high difficulty in both rhythm and pitch, so you’ll need determination.

Also, there’s a key change in the latter half, so everyone except the drums should be careful not to slip out of alignment.

Kurumi☆Ponchiomada ko

Hatsune Miku - Kurumi☆Ponchio [Original] Chinese Subtitles HD
Kurumi☆Ponchiomada ko

It’s a Vocaloid track with a sensual motif that’s outdone by its comedic flair—you can’t help but laugh.

The straightforward lyrics and Miku’s soaring vocals are strangely addictive.

Its unforgettable charm after just one listen, and the irresistible urge to hit replay when it’s over, are what make this song truly stand out.

become emptyMIMI

“Become Empty” / feat. Hatsune Miku & KAFU
become emptyMIMI

This is a duet by Hatsune Miku and KAF, produced by MIMI, known for hits like “Mashumarry.” Set to a crisp, catchy sound, the lyrics convey the sorrow and emptiness of a heart gone hollow.

Yet within the clear, translucent harmonies, you can feel a warmth—as if their presence gently fills that void.

If you’re in the mood to share a sentimental feeling, be sure to immerse yourself in the world of this song.