A special collaboration of four groups has been realized for the new song "Koko ni Iru"! Kohazu Shi (PSYCHIC FEVER), YUGA (ONE OR EIGHT), and YUHI (THE JET BOY BANGERZ) are participating!

WOLF HOWL HARMONY invited guest artists for a special collaborative performance of their new song "Koko ni Iru" (I'm Here).

This collaboration project features Koji Kohazu of PSYCHIC FEVER and YUGA of ONE OR EIGHT, who, like WOLF HOWL HARMONY are also focusing on activities overseas.
Furthermore, with the addition of YUHI from THE JET BOY BANGERZ, who is also working with them as part of "NEO EXILE," a total of seven members from four groups will participate, making this a truly spectacular and must-see event!

"Koko ni Iru" is a ballad written and composed by ☆Taku Takahashi of m-flo, and served as the ending theme for the TV anime "Iwamoto Senpai no Susumei".
It depicts the determination to quietly move forward while confronting oneself despite wavering and internal conflict.

Please enjoy this new world of "Koko ni Iru," which is different from the original song, created by the interplay of each individual's personality and singing voice.


[Collaboration Vocal Lineup]
① WOLF HOWL HARMONY × Kohazu Takashi (PSYCHIC FEVER) × YUGA (ONE OR EIGHT)
Released on August 10th (Monday) at 18:00
https://youtu.be/SlZw-FalEr4

② WOLF HOWL HARMONY × YUHI (THE JET BOY BANGERZ)
Coming soon

③ WOLF HOWL HARMONY only
Coming soon

[Song Information]
WOLF HOWL HARMONY
"I'm here"
TV anime "Iwamoto-senpai no Sousen" ending theme

Music Video:
https://www.youtube.com/watch?v=ItNWR7OPAN4

Streaming & Download:
https://whh.lnk.to/KOKONIIRU


[Artist Comment]
Konatsushi (PSYCHIC FEVER)

This is Kohazu Koshi from PSYCHIC FEVER. This time, I sang "Koko ni Iru" by WOLF HOWL HARMONY.
I'm good friends with WHH, and we often have deep conversations about vocals and just casual small talk. We also respect each other as fellow artists.

I was so happy to be able to sing with WHH and YUGA from ONE OR EIGHT.
While singing, we were able to feel each other's presence, and I put my own feelings into the song, so I hope it reaches many people.

I hope you'll enjoy the chemistry between WOLF HOWL HARMONY, ONE OR EIGHT, and PSYCHIC FEVER.


YUGA (ONE OR EIGHT)

I collaborated with WOLF HOWL HARMONY on their new song "Koko ni Iru"!
I've always hoped to sing with all of you someday, so I'm truly happy that we were able to do so in this way!

We all sang this song with one heart. We hope that the feelings we put into this song will reach many people.
Please listen to it a lot!


YUHI (THE JET BOY BANGERZ)

I'm YUHI, the vocalist of THE JET BOY BANGERZ.
When I listened to "Koko ni Iru," I was really impressed by the beautiful harmony that emerged from the clash of individual personalities.
I felt that this song truly showcased the essence of WOLF HOWL HARMONY.

I feel honored to be able to collaborate on such a song.
Also, I was happy to be able to sing with RYOJI and SUZUKI again after so long!

I sang it with my own interpretation and feelings in mind.
I hope this reaches many people.

WOLF HOWL HARMONY
(Comment from member RYOJI)

We would like to express our heartfelt gratitude for the opportunity to collaborate with so many different artists on our song “Kokoniiru.”

We’ve been expanding our reach both domestically and internationally, and the fact that we’ve been able to share our music across genres, generations, and other boundaries
thanks to our fans, who have always supported us with such warmth and passion.

That is why, in this collaboration, we poured our hearts into conveying our gratitude through “Kokoniiru,” while sharing our feelings with all the participating artists.
We would be delighted if you could enjoy listening to this new story of “Kokoniiru,” born from the convergence of each artist’s unique personality and sentiments.


[Artist Profiles]
PSYCHIC FEVER
A seven-member boy group consisting of KOKORO, WEESA, TSURUGI, RYOGA, REN, JIMMY, and RYUSHIN, who debuted in July 2022 as the seventh group under “EXILE TRIBE”—a one-of-a-kind Japanese artist collective affiliated with LDH JAPAN.

Named PSYCHIC FEVER because the unique personalities of each of the seven members create a “chemical reaction” through their dance, vocal, and rap performances (their fan club name is ForEVER).With “IGNITE OUR DREAMS” as their guiding purpose, PSYCHIC FEVER’s performances inspire viewers to dream, give them courage, and set their hearts ablaze.

Aiming for global success, they have been active primarily in Japan and across Asia since their debut in 2022. In particular, their January 2024 release “Just Like Dat feat. JP THE WAVY” garnered significant attention both domestically and internationally, with total views on TikTok surpassing 270 million.Furthermore, the track charted on Spotify’s Top 50 Viral Charts—including Japan—in nine Asian countries and regions, such as Thailand, Vietnam, the Philippines, Singapore, Malaysia, and South Korea, and became a viral hit in the U.S. as well, drawing attention from around the world.

In February 2025, he held the “PSYCHIC FEVER FIRST U.S. TOUR 2025” in six U.S. cities, which was a huge success. Also in February, PSYCHIC FEVER signed a global contract with Warner Music Group and announced their move to the music label “10K Projects.”In March, they performed at SXSW 2025, one of the world’s largest music trade shows in the U.S., and as they continue to expand the scope of their activities, their global ambitions are set to accelerate even further.

<X>
https://x.com/psyfe_official
<Instagram>
https://www.instagram.com/psyfe_official/
<TikTok>
https://www.tiktok.com/@psyfe_official
<YouTube>
https://www.youtube.com/PSYCHICFEVER
<Official Site>
https://www.ldh.co.jp/management/psychic_fever/


ONE OR EIGHT
Debuting in August 2024, this eight-member global boy band from Japan is taking on the world with a “all or nothing” challenge.
With the tagline “BET ON YOURSELF,” they embody the spirit of betting on their dreams.

Their song “TOKYO DRIFT,” released this year, has generated over 200,000 user-generated videos and more than 300 million views on TikTok. It entered the “Mediabase Top 40”—one of the most prestigious radio charts in the U.S.—breaking the record for the most chart entries by a Japanese boy band.In Japan, they won the “Upcoming Dance & Vocal Group” award at the “MTV VMAJ 2025.”In Asia, they won “New Artist of the Year” at the 2025 Music Awards hosted by China’s Netease. The lead single “YANKEE SQUAT” from their first EP “EN-GÏNE,” set for release on September 16, is now available for streaming.

<X>
https://x.com/oneoreight__
<Instagram>
https://www.instagram.com/oneoreight_/?hl=ja
<TikTok>
https://www.tiktok.com/@oneoreight_
<YouTube>
https://www.youtube.com/@ONEOREIGHT_
<Official Site>
https://oneoreight.com/


THE JET BOY BANGERZ
A 10-member dance and vocal group formed from “iCON Z,” LDH’s largest-ever audition with 48,000 participants.
They debuted on August 23, 2023, with the single “Jettin’.”
The group’s name conveys the meaning of “a gathering of boisterous personalities burning brightly like jet engines.”
All seven performers are active as “D-Leaguers” in the professional dance league D.LEAGUE. Furthermore, the group includes vocalists from the chorus group “DEEP SQUAD,” boasting one of the top performance capabilities even within LDH, which is known for its talented artists.
Since their debut, they have continued their impressive run—with their EP “PHOTOGENIC” reaching No. 1 on the Oricon Weekly Album Chart and their first album “JET BOY” peaking at No. 1 on the Oricon Daily Album Chart—and are rapidly expanding their fan base as a one-of-a-kind performance group.

<X>
https://x.com/tjbb_
<Instagram>
https://www.instagram.com/the_jet_boy_bangerz/
<TikTok>
https://www.tiktok.com/@the_jet_boy_bangerz
<YouTube>
https://www.youtube.com/@THE_JET_BOY_BANGERZ
<Official Site>
https://www.thejetboybangerz.jp/


WOLF HOWL HARMONY
GHEE(GHEE) and HIROTO (HIROTO), joined by RYOJI (RYOJI) and SUZUKI (SUZUKI)—who have been active as part of the chorus group DEEP SQUAD since the start of iCON Z Chapter 2—to form a four-member vocal and rap group.The group was named “WOLF HOWL HARMONY” because “the members’ life stories intertwined, and these melancholic, lone-wolf-like individuals came together by fate.”

Going beyond activities in Japan, they have been actively performing in Thailand since last year and won the Best Boy Group award at the “ASIA TOP AWARDS,” an international awards event celebrating Asian entertainment and culture, in July 2025.
Since their debut, their total song streams have surpassed 65 million. Armed with exceptional vocal and rapping skills, they are a new-generation group active on the global stage.

<X>
https://x.com/WOLFHOWLHARMONY
<Instagram>
https://www.instagram.com/wolf_howl_harmony/
<TikTok>
https://www.tiktok.com/@wolf_howl_harmony
<YouTube>
https://www.youtube.com/@wolfhowlharmony
<Official Site>
https://wolfhowlharmony.jp/