June 20th – NENE Releases Chanmina/HANA/SKY-HI/BMSG Diss Track, “Owari”
note: english CC is available on the video
On June 20th, Japanese rapper NENE released a diss track titled “Owari”, which makes it explicitly clear that she is dissing Chanmina and calls her out by name. The diss track starts with NENE saying that she heard Chanmina’s new song but doesn’t see credit to NENE on the song and questioning Chanmina calling herself a rapper when she doesn’t write the lyrics herself. NENE then proceeds to call out Chanmina for copying her using “I’m on your mood board, I’m on your moodboard bitch” as a refrain and theme of the diss track and having a Chanmina look-a-like model desperately looking and sprawling around a mood board full of NENE’s pictures. In addition to accusing Chanmina of copying her, NENE also alleged the following and/or had bars directed towards:
- Chanmina had liposuction (presumably after giving birth)
- Chanmina, SKY-HI (a friend/collaborator of Chanmina and owner of BMSG label/management group), and BMSG are pop sellouts using hip-hop for their gain
- HANA (the girl group Chanmina produces in collaboration with BMSG)’s recent release “Burning Flower” heavily referencing fire and being hot (e.g., あちちち being a hook in the song) when NENE has been doing this in her previous releases
- “I’m so high, SKY-HI” (i.e., directly calling out SKY-HI by name)
- “I’m gonna pee on your JIGG beat” (i.e., referencing JIGG who is a producer who frequently works with Chanmina and HANA)
- “I’m the hottest one, burned” (i.e., referencing the “I’m the hottest one” lyrics in HANA’s Burning Flower)
- “Bitches, Market, Stealing, Group” (i.e., calling out BMSG again for their pop acts using hip-hop for their gain)
After the release of the diss track, Chanmina later addressed it on her IG Live denying that she plagarized NENE, claimed that she only met NENE once and greeted her in passing at a gig (likely at Music Awards Japan where both Chanmina and NENE performed live a month prior to the diss track), and has no plans to respond to NENE’s diss track. HANA also continued their promotion of Burning Flower and teasing their next single “Blue Jeans” and ignored NENE.
June 23rd – Nina Utashiro Accuses NENE of Plagarizing Nina’s Upcoming Song on Chanmina/HANA Diss Track, Announces Plan to Release “Mood Board” Music Video Early
However, on June 23rd Japanese soloist/rapper and creative artist Nina Utashiro calls out NENE for plagarizing her song in her Chanmina/HANA diss track and says “I’m really on your mood board, so I’m going to release the song earlier than expected. Mood Board MV 2025/6/26 8:00pm” via Twitter and Instagram.
NENE later responded to the Instagram post questioning how she could plagarize a song that’s not out yet and tells Nina Utashiro to stop riding on NENE’s coattails and release her songs with confidence instead
June 24th – Nina Utashiro Provides Receipts
After seeing NENE’s Instagram response, NENE posted a series of stories on Instagram and Twitter in response to NENE with receipts showing that Mina Utashiro has been performing and/or teasing this song since December 2024, including a venue/gig where both Mina Utashiro and NENE, a screenshot of a 2/18 draft of her upcoming album which includes an audio file for Mood Board, video files of recording the Mood Board MV dated back in mid-December, dance training with a choreographer for the song in April 2025, and more recent footage of her performing the song to a live audience in early June 2025 before NENE released her diss track. Nina also posted receipts of trying to get in contact with NENE via LINE but being rejected, thus why she decided to put the receipts public. The Instagram stories are saved in her Highlights for Mood Board. Interestingly, she posted a story of her makeup artist messaging Nina on Instagram asking why they were the only one made public/uncensored, following with a request to call Nina. This gets addressed later in the timeline.
June 25th – SKY-HI Releases Diss Track Response “0623FreeStyle”
Although Chanmina never responded to the diss track, SKY-HI released “0623FreeStyle” on June 25th, 5 days after NENE’s diss track. Highlights from the diss track include:
- Calling NENE a TikTok rapper with 1 or 2 viral hits and her releases are “vertical music”
- Said that she is off-beat
- Disses her dancing and how it’s geared towards social media while he and BMSG are professional dancers and hire the best choreographers
- SKY-HI actually influences and makes artists who make it while NENE wishes she does that
- He actually respects hip-hop culture while accusing NENE of copying Hiromi Go who used あちあち (i.e., “hot hot”) in his song over a decade ago yet acting like Chanmina and HANA stole it from her
- Calls out fans invested into NENE’s diss track, how there is reality/real life going on outside of it (i.e., Palestine), and to go vote
NENE reacted to the diss track on Twitter with “This wasn’t about you, lol”, which was met with mixed reactions due some people interpreting this as backtracking while others pointing out that she called SKY-HI out even though her main focus was Chanmina
June 26th – Nina Utashiro Releases “Mood Board”
On June 26th, Nina Utashiro officially releases “Mood Board”, which is clearly about people stealing/copying you and being on their mood board in the lyrics and the music video. Nina also used the following caption on Instagram when promoting the music video release (コンセプトパクられたことある人ー？🙋♀️ “MOOD BOARD” Music Video out on YouTube only link in bio 字幕つけて見てね; t/n: Who had their concept stolen? 🙋♀️ “MOOD BOARD” Music Video out on YouTube only link in bio, watch with subtitltes). Interestingly, Nina tagged the socials of each person credited on the music video on her Instagram post except for her makeup artist, who was credited but not tagged. Again, this gets addressed later in the timeline.
Side note, people are also praising Nina’s creativity and pointing out how she studied art history at Columbia University, although Columbia University is prob not exactly a flex at the moment for… reasons lol
June 29th – NENE Releases SKY-HI Diss Track, “Hajimari”
On June 29th, NENE responds to SKY-HI’s diss track with her own, titled “Hajimari”. She essentially doubles down on what she said on the initial diss track, but some highlights include:
- Strongly insinuates something sketchy is happening at BMSG (probably of a sexual nature), as she asks if BMSG is okay, makes reference to their management policy following with saying that their employees are cumming again
- Repeats from the initial diss track on how BMSG and SKY-HI are sellouts while NENE and underground artists respect the hip-hop genre and culture
- “AAA to to triple B grade” (a bar referencing SKY-HI being a former member of AAA, a Japanese idol group that has since disbanded)
- Makes fun of fans praising SKY-HI and sarcastically saying, “you’re amazing boss/president” as a further dig to him not being a genuine part of the Japanese hip-hop scene, then calls BMSG for having pop acts yet categorizing themselves in hip-hop for award categories
- Calls SKY-HI out for his self-rightiousness in his diss track (i.e., the voting line) and says that if he truely cared about things, he’d re-distribute his wealth and opportuntities to get into the industry
- Criticizes his songs and lyrics lacking passion compared to people who actually belong in hip-hop like NENE
- Calls out hypocrisy in BMSG and Chanmina fans attacking her online (note: they tend to make attacks about her age and/or looks, which is contradictory to how many Chanmina fans stan her because of how she addresses sexism and beauty standards in her music)
- Essentially says that she is indeed gatekeeping hip-hop because she respects it and it’s important to her and wants fans to engage with true hip-hop culture
- Calls out again how BMSG and Chanmina are going for hip-hop categories in awards because it’s easier to win those categories than pop
As of posting, SKY-HI did not respond to this follow-up diss track.
July 2nd – Nina Utashiro Releases NENE Diss Track, “mood: bored”
On July 2nd, Nina Utashiro releases a NENE diss track titled, “mood: bored” which samples from her recent Mood Board release. Here, she reveals more details/accusations about NENE stealing from her and plot twist, the make-up artist is revealed. The first half of the diss track is in Japanese, while the second half is in English (likely a very intentional decision given how Nina makes fun of NENE’s English on the track). Some highlights include:
- Tells NENE to not use plagarism as a joke, seemingly in reference to accusing Chanmina/HANA of doing this using a diss track that is also guilty of plagarism. Also calls NENE a thief
- Warns NENE to be careful of parasites and explicitly calls out NENE’s personal stylist
- States that she sung Mood Board twice in front of NENE and record the music video six months ago
- Calls out NENE’s “errand boy” (presumably the personal stylist) for infiltrating as Nina’s makeup artist for the Mood Board music video and stealing ideas for NENE
- Says if you’re going to talk about copying people, look at the quality of your own work first
- Disses NENE’s “poor English”, proceeds to say “Talkin’ bout muse, muse, muse/Bitch gotta be confused” in reference to NENE saying “I’m on your mood board, bitch/ Cus I’mma muse, muse, muse” in her Chanmina diss track. The remainder of the diss track is also in English.
- “She said she hot as shit ooo/Watch how cold I can go/She said her flow is sick/Give her a cold and send to the morgue ooo/Bitch got slick threw a hit but missed its time to be friends with the floor/She don’t want want no more she looks better on the floor” (i.e., dissing the whole あつい/あち thing)
- More bars further making fun of the あつい/あち thing
- “Hope you got a clue now/I’m the fucking mood now uh/Oh you make my mood bored/Imma state the true lore/I just got a new lawyer/Feel like I should sue more/All they bars are lukewarm/I should tell the truth more/You should cut that tumor/Snip!”
As of posting, NENE did not respond to this diss track, although she apparently mentioned about being passionate and part of the hip-hop community in a recent feature, possibly indirectly referencing the ongoing beef?
Sources 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9
i was originally going to share this in the comments of one of 
reveriexz‘s J-Pop megaposts, but there were constant new developments so might as well just have it as a separate post lol
also mods let me know if i’m missing any sources or there are issues with formatting since this was a bit of a mess to put together
