flumpool Hit with ‘Ghostwriter’ Allegations — Composer Claims He Secretly Wrote Their Songs for 8 Years, Files Suit

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The story

It’s been reported that pianist and composer Fuminori Oura has filed a damages lawsuit against flumpool guitarist Issei Sakai. Oura claims that for roughly eight years he composed songs — including “Koe ni Naranai Omoi” (“Feelings That Can’t Be Voiced”), used as background music in the TBS drama Taigan no Kaji: Kore ga, Watashi no Ikiru Michi! (“Housework on the Other Shore: This Is the Path I Live”) — that were credited to Sakai instead of himself. On the 5ch Geisoku Sokuho+ (celebrity/sports tabloid) thread, posters repeatedly compared the case to the infamous Mamoru Samuragochi ghostwriting scandal, while speculation also swirled about whether other famous artists’ songwriting credits hold up to scrutiny.

“For about eight years, I created background music for dramas at the request of flumpool guitarist Issei Sakai. But the songs I composed were released under Sakai’s name, and I was never credited as the composer,”

says Fuminori Oura, who works as a pianist and composer. Alongside scoring an upcoming horror game set for release in 2027, he also works as a piano teacher.

The dispute centers on “Koe ni Naranai Omoi,” a piece of background music (“gekiban”) used in the 2025 spring TBS drama Taigan no Kaji: Kore ga, Watashi no Ikiru Michi!, which starred Mikako Tabe with Dean Fujioka among the cast. Oura is now suing Sakai over the song, seeking damages.

Source: jprime.jp / Original article here

What people said

4AnonymousOct 20, 2026 19:40
HEEERE'S the Reiwa-era Samuragochi!! ━━━━(゚∀゚)━━━━!!
73AnonymousOct 20, 2026 19:56
Re: #4
The Samuragochi scandal was about a ghostwriter, but isn't this different? If he put someone else's song out under his own name without permission, that's plagiarism.
105AnonymousOct 20, 2026 20:03
Re: #4
I thought the exact same thing, but that case also had the whole 'can he actually hear' controversy, so nothing's gonna top the Samuragochi scandal. Also, like back then — pay enough that they won't talk.
8AnonymousOct 20, 2026 19:44
Isn't everyone at Amuse (the talent agency) like that except Southern All Stars?
138AnonymousOct 20, 2026 20:10
Re: #8
Fukuyama's songs sound super amateurish, but if a pro composer deliberately made them that way, that's actually impressive.
9AnonymousOct 20, 2026 19:44
Oh yeah, these guys disappeared, huh. I'd even forgotten their name lol
50AnonymousOct 20, 2026 19:52
Re: #9
They went independent, so they lost Amuse's backing.
11AnonymousOct 20, 2026 19:44
I wonder what percentage of songs credited to voice actors as lyricist/composer are actually ghostwritten.
168AnonymousOct 20, 2026 20:14
Re: #11
As long as everyone agreed to it, it's fine. If the song itself isn't anything special, it'll sell better under a voice actor's or actor's name than under the real composer's.
183AnonymousOct 20, 2026 20:17
Re: #11
Well, obviously — even Yukari Tamura leaves the lyric-writing to pros.
22AnonymousOct 20, 2026 19:46
Why's he kicking up a fuss about this now, after all this time?
31AnonymousOct 20, 2026 19:48
Re: #22
It's not 'now' — he's actually filing suit. Try reading Re: #1.
54AnonymousOct 20, 2026 19:52
When's Yasushi Akimoto gonna get sued?
64AnonymousOct 20, 2026 19:54
Re: #54
Even if Akimoto's done something shady, he shares the proceeds with everyone around him, so he's probably fine. The Sega gig was rough though.
75AnonymousOct 20, 2026 19:56
Re: #54
When Akimoto's lyrics have old-fashioned words like 'disco' or 'cafeteria,' I figure he's actually writing it himself this time.
136AnonymousOct 20, 2026 20:10
Re: #54
With Akimoto it's the opposite — it's unknowns who get their start by writing under his pen name.
58AnonymousOct 20, 2026 19:53
If ghostwriting is set up as an actual agreed contract between both parties, there shouldn't be any problem with it. So why does it blow up later? Even with novels or manga, these days it's rarely made by just one person — it's a team effort. But calling the person who gave instructions and had it made 'the author' alone is something society generally accepts.
66AnonymousOct 20, 2026 19:54
Re: #58
The one commissioning the work tends to fudge (deceive) things in various ways.
70AnonymousOct 20, 2026 19:56
Re: #58
This one's simple — they didn't pay enough.
100AnonymousOct 20, 2026 20:01
Re: #58
Probably because no contract was ever properly in place.
102AnonymousOct 20, 2026 20:02
I wonder what happened to Niigaki-san, who ghostwrote for Samuragochi?
134AnonymousOct 20, 2026 20:10
Re: #102
I figured he'd be shunned and sidelined, but he's actually kept getting bits of work — playing in a band with Koyabu and Sentence Spring's Kawatani, etc.

> Genie High
When forming the band, Kawatani advised Koyabu that they needed a keyboardist. Koyabu, who had performed with Niigaki at 'BAZOOKA!!!' and Koyabu Sonic and was on good terms with him, recommended Niigaki as 'the most ridiculously skilled keyboardist I know.'
117AnonymousOct 20, 2026 20:06
If it was done as paid work, that's a personal business matter. If you deliver the work without a contract and only bring up crediting afterward, you're not really in a position to complain, are you?
124AnonymousOct 20, 2026 20:08
Re: #117
I wonder if he even filed taxes on it.
151AnonymousOct 20, 2026 20:12
People always say you can't tell what Fukuyama Masaharu's musical roots actually are.
165AnonymousOct 20, 2026 20:13
Re: #151
Isn't it Shigeru Izumiya?
152AnonymousOct 20, 2026 20:12
If you're gonna do this kind of thing, you shouldn't be cheap about it and skip paying a proper fee lol
161AnonymousOct 20, 2026 20:13
Re: #152
At the very least they should've paid him the same rate as an arranger — several hundred thousand yen per song.

Background and Key Points of This Story

This case is often compared to the ghostwriting scandal involving Mamoru Samuragochi that came to light in 2014, but the legal nature is different. In Samuragochi’s case, the problem was that he publicly presented a false persona — a deaf composer who was a second-generation atomic bomb survivor — and deceived the public. By contrast, the lawsuit Oura has filed concerns a dispute over contract terms and moral rights of authorship: he claims the songs he composed were credited to the person who commissioned them rather than to himself, not that the work itself was stolen or that anyone faked their background. In the music industry, it’s not uncommon for outside composers to write background scores or songs credited to a singer or idol group, and this poses no legal problem as long as it’s agreed to by contract. The thread prompted a flood of unverified speculation about other famous artists’ songwriting practices, but as of now the only confirmed, public matter is the lawsuit between Oura and Sakai — treating other cases as equivalent to it would be premature.

*This article is excerpted and summarized from the 5ch (Geisoku Sokuho+) thread “[Music] Kohaku-appearing band flumpool embroiled in lawsuit over ‘ghostwriter’ allegations! Composer Fuminori Oura reveals 8 years of songwriting [Ailuropoda melanoleuca★]“.

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