Kaito Takahashi’s Solo Moniker ‘KAITO’ Shares a Name With an Existing Vocaloid — 5ch: ‘Showing Up Late and Copying the Name Is Just Dumb’

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The story

On October 4, King & Prince’s Kaito Takahashi announced his debut solo single “swim?,” revealing that he would perform under the artist name “KAITO.” Many fans welcomed the ambitious project — Takahashi handles the lyrics, composition, and music video himself — but the name “KAITO” is identical to that of a male Vocaloid character that has existed since 2006, sparking confusion and frustration among Vocaloid fans. On 5ch, opinions clashed between those who argued it’s fine since it’s his real name and those who felt that, as the later arrival, he should have shown more consideration — fueling broader interest in this clash between a celebrity’s stage name and an existing character name.

October 4, 2026, 19:00

Kaito Takahashi (27), of the idol group King & Prince, announced on the 4th that he will begin solo activities under the name KAITO. Vocaloid fans are crying out in dismay.

The title of Takahashi’s first single is “swim?” He is reportedly involved in every part of the creative process himself — lyrics, composition, artwork, and the music video. King & Prince fans are thrilled about this solo venture. But the announcement has left one other group crying out in distress: fans of KAITO, the world’s first Japanese male-voice Vocaloid.

Source: tokyo-sports.co.jp / Original article here

What people said

3AnonymousOct 4, 2026 20:29
Vocaloid stans are seriously aggressive, huh (orig. "gravel otaku," 5ch slang for diehard Vocaloid fans)
5AnonymousOct 4, 2026 20:30
The Vocaloid's way more famous, so this guy's just gonna get buried
Showing up later and copying the name is just dumb
6AnonymousOct 4, 2026 20:30
What's 'Kinpuri' (King & Prince) anyway?
7AnonymousOct 4, 2026 20:31
There's supposedly an unwritten rule in showbiz about not reusing names
I feel like the newcomer is usually expected to avoid it, though I don't really know
84AnonymousOct 4, 2026 21:11
Reply to #7
There are plenty of guys named 'Daigo' out there
Actually, maybe Takahashi just didn't know KAITO existed?
8AnonymousOct 4, 2026 20:31
[STARTO] — the way people keep emphasizing this is creepy
9AnonymousOct 4, 2026 20:32
Honestly, at this point this is just people being professional complainers
10AnonymousOct 4, 2026 20:32
Even if he doesn't care personally, I'd have thought his staff would check the rights situation
11AnonymousOct 4, 2026 20:32
Well, Johnny's (the talent agency) never cares about inconveniencing other people. They'll even slap a 'no co-appearance' ban on other acts.
12AnonymousOct 4, 2026 20:33
Same with King & Prince itself — overlapping names with anime and stuff is one of Johnny's' bad habits
18AnonymousOct 4, 2026 20:34
Reply to #12
Wasn't there already a show nicknamed 'Kinpuri'?
And if both KAITOs are putting out songs, they'll just cannibalize each other and create noise
The Vocaloid's been around for 20 years already, and it's even a registered trademark
17AnonymousOct 4, 2026 20:34
I hate comedians who name their duo after a game's proper noun
24AnonymousOct 4, 2026 20:36
Reply to #17
Like Danbira Muchо, for one
Fuusuuya too
Are a lot of them from Yoshimoto (talent agency)?
19AnonymousOct 4, 2026 20:34
The model Yu Takahashi existed before Amuse's Yu Takahashi, yet she still changed her name
20AnonymousOct 4, 2026 20:35
'Vocaloid? Never heard of it'
is probably a fine attitude to have
22AnonymousOct 4, 2026 20:35
This is so trivial it's hilarious
What about EXILE, then?
25AnonymousOct 4, 2026 20:36
Obviously the one who came first outranks you — go change your artwork instead
26AnonymousOct 4, 2026 20:36
KAITO is a male Vocaloid from the same lineup as Hatsune Miku, and that name's been in use for ages

The agency surely knew that, so they seriously went ahead and pushed this name anyway?
Typical Johnny's (talent agency)
Just garbage
52AnonymousOct 4, 2026 20:48
Reply to #26
If it's at a level nobody really knows about, I doubt people would care that much
Though I do think stylizing it as 'KaiTo' would've been the smarter move
27AnonymousOct 4, 2026 20:36
It's a pretty common name in general
29AnonymousOct 4, 2026 20:37
Reply to #27
Sure, it sounds the same, but matching the spelling too is just mean-spirited
31AnonymousOct 4, 2026 20:40
Oh, it's the Vocaloid-listening otaku crowd picking a fight again, huh
33AnonymousOct 4, 2026 20:41
It's his real name, so there's no 'overlap' issue to begin with, is there?
35AnonymousOct 4, 2026 20:43
They're muscling in and taking it over by force, so of course they don't care
46AnonymousOct 4, 2026 20:46
After three members left, all the appeal just disappeared
50AnonymousOct 4, 2026 20:48
Reply to #46
Sounds like the three of them signed with an American label
I always figured 'taking on America' was just an excuse for leaving
48AnonymousOct 4, 2026 20:46
Come on, showing up late and being this pushy about it
You could've just stuck with the kanji 'Kaito' (海人) as-is
62AnonymousOct 4, 2026 20:53
Going solo — does that mean he can actually write and compose songs?
70AnonymousOct 4, 2026 20:57
Reply to #62
He probably just gets the song written for him and sings it alone (´・ω・`)
76AnonymousOct 4, 2026 21:05
Reply to #62
It's co-written, but he's been involved in songwriting with King & Prince too
65AnonymousOct 4, 2026 20:54
Reply to #1
To begin with, 'Kinpuri' itself is a ripoff of 'KING OF PRISM,' isn't it
67AnonymousOct 4, 2026 20:55
Reply to #65
Technically, 'Kinpuri' (King & Prince) came first
72AnonymousOct 4, 2026 21:02
Is this guy half Indian?
77AnonymousOct 4, 2026 21:06
Reply to #76
So then, is this guy more on the side of the three who left?
83AnonymousOct 4, 2026 21:09
Reply to #77
He's the type who can really dance hard
Not the sparkly idol-type

A 'difference in direction' split is probably coming soon

Background and Key Points of This Debate

The Vocaloid “KAITO” is a male-voice Vocaloid produced by Crypton Future Media. Within the thread, posters claimed things like “it’s been around for 20 years already” and “it’s a registered trademark,” but these are only claims made in the posts themselves and have not been verified as fact by this article. Meanwhile, what complicates the discussion is that Kaito Takahashi’s “Kaito (海人)” is his actual given name — he is using his legal name, not a stage name, directly as his solo moniker. Because it’s a real name, legal problems are unlikely to arise, but when it overlaps with an already widely known existing name, the debate centered on whether the agency should have coordinated in advance out of “consideration.” That was the main point splitting the thread, pitting a “can’t be helped since it’s his real name” camp against an “it’s inconsiderate for the later arrival to copy the name” camp. Note that this article excludes posts that were simply abusive toward Vocaloid or otaku culture in general, as well as posts mocking members’ appearances.

*This article is excerpted and summarized from the 5ch (Geisoku Sokuhō+) thread “[STARTO] King & Prince’s Kaito Takahashi’s ‘Solo Moniker’ Totally Overlaps With Existing Vocaloid ‘KAITO’ — ‘Wouldn’t You Normally Mind That?’ Vocaloid Fans Lament [Ailuropoda melanoleuca★].”

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