*Radio Power Play indicates that a particular song is selected through votes or meetings by radio station staff and DJs, and is broadcast intensively for a certain period of time, indicating that the song and artist are receiving particular attention.
The new song “Rhapsody” by the four-member band “BILLY BOO” from Sendai, formed in May 2024, has been selected as a push song (power play) on 57 radio stations across the country! Their rapid advances, shortly after their debut, have finally spread across the country.
BILLY BOO is formed around KAZUKI UJIIE, a singer-songwriter with over 60 million views on social media, with a unique singing voice that you will never forget once you hear it. A four-member band with roots in black music, combining overwhelming mixed sounds that transcend genres with a catchy melody that captures the hearts.
“Lens,” which will be released on October 13th, 2024, was used as background music for ABEMA romance reality show “Don’t be fooled by You and the Wolf,” and ranked 6th on the Spotify Viral Chart. In addition, in February 2025, they released an EP, led by the popular live song “Bakaki.”
The new song “Rhapsody,” which was selected as a push song (power play) on 57 radio stations nationwide, has been the ending theme for the TV anime “The Mystery Solving After Dinner” which will be broadcast on Fuji TV’s “Noitamina” nationwide since April.
It is a cheer song filled with light sounds of messages that gently blow away unresolved feelings and unsolicited messages that gently blow away negative emotions in your everyday life.
“Rhapsody” will be available for streaming on April 11th and the CD will be released on June 4th.
We can’t take our eyes off the future success of the most popular band, BILLY BOO, in 2025.
◆ List of power plays for BILLY BOO “Rhapsody” April
*For details on the OA period, please check the official websites of each radio station.
(Hokkaido area)
FM NORTH WAVE “MEGA Play”, “Radicle Push”
(Tohoku area)
Date fm “Mega Play”
FM Akita “Monthly Selection”
FM Iwate “POWER PLAY”
FM Yamagata: “Power Push!”
TBC Tohoku Broadcasting “Recommended Power Play”
H@! FM “Pickup Artist”
Fukushima FM “Favourite Guru”
(Kanto-Koshinetsu area)
J-WAVE “SONAR TRAX”
TOKYO FM “Skyrocket Company Recommendation Song Scalareco – Employee Song”
Nippon Broadcasting System “All Night Nippon Push Song”
TBS Radio’s “Recommended Songs”
Interfm “Hotpicks”
bayfm “POWER PLAY”
NACK5 “POWER PLAY”
Fm yokohama “Tresen Ending Theme”
FM FUJI “SOUND FOREST”
FM-NIIGATA “POWER PLAY”
BSN Radio (Niigata Broadcasting) “Weekly Tune” *June
FM Nagano “POWER PLAY”
RADIO BERRY FM Tochigi “B-HOT! Rookies”
LuckyFM (Ibaraki Broadcasting) “POWER PLAY”
YBS Radio (Yamanashi Broadcasting) “909 Weekly Tune”
(Tokai area)
FM Gifu “G-POWER PLAY”
FM Mie “Power Play”
SBS Radio (Shizuoka Broadcasting) “Monthly Power Play”
CBC Radio “Sing together! CBC Radio April 2025 Song”
(Hokuriku area)
FM Fukui “Heavy Rotation”
FM Toyama “Music Power Play”
KNB Radio “Deru Radio in this week’s song”
MRO Radio (Hokuriku Broadcasting) “Sound”
(Kansai area)
FM Osaka “POWER PLAY”
Kiss FM KOBE “HOTRAXX”
α-STATION “SMASH BREAK”
FM Shiga “Hot Stuff”
5 Kansai AM radio stations (Radio Kansai, ABC Radio, KBS Kyoto, MBS Radio, Radio Osaka) “MONTHLY A-Music”
(Sanin area)
Hiroshima FM “POWER PUSH”
FM Okayama “Slap Shot”
FM Yamaguchi “FMY PUSH・ONE”
FM Sanin “V-air Tsuki Push JP”
(Shikoku area)
FM Kagawa “Prime Tune”
FM Ehime “Kamo☆Redi★Night! Power Play”
FM Tokushima “SUPER ENDING”
(Kyushu area)
FM Fukuoka “Power Play”
FM Nagasaki “Smile Cuts”
FM Kumamoto “POWER WAVE”
FM Saga “MonthlyLoop”
FM Miyazaki “Power Play”
FM Kagoshima “HYPER Bran’μ Song”
FM Oita “Power Play”
Fukuoka RKB Radio “Saenowafuru Ending Power Play”
Kagoshima MBC Radio “Recommended Songs for Music Committee”
Nagasaki NBC Radio “Power Play Muse Hearts NEO” and “MUSIC WOLF Monthly Ending Song”
◆BILLY BOO “Rhapsody” release information
Ending theme for TV anime “The Mystery Solving After Dinner”

・Register reservation link
https://billyboo.lnk.to/Rhapsody_
・CD reservation link
https://BILLYBOO.lnk.to/RhapsodyIn
¥1,650 (tax included)
SRCL-13318
・CD store-specific benefits
[Target store/Bonus content]
■All HMV stores (including HMV&BOOKS Online/Excluding some stores) … Items not yet decided
■Rakuten Books… Items to be determined
■Amazon.co.jp … Mega Jacket
■Seven Net Shopping… Items not yet decided
■Sony Music Shop ・・・ Items not yet decided
■Nationwide Animate (including mail order) … Item not yet decided
■BILLY BOO Support Store… Items not yet decided
[Notes]
*The number of bonuses is limited, so they will end as soon as they run out. Thank you for your understanding.
*No distribution will be made at stores other than those listed above. note that.
*We will inform you of the stores eligible for support stores and bonus designs at a later date.
*Please note that it may take some time for the cart to be published for each online shop.
*Amazon.co.jp, Rakuten Books, and some other online shops have “special offer page” and “special offer page” that is not eligible for bonuses.
When making a reservation, please check whether the product page you are looking for before making a reservation.
■Photograph 1 of the TV anime “The Mystery Solving After Dinner”
■BILLY BOO Profile
Formed in May 2024. With its roots in black music, this four-member band combines a unique mixed sound that transcends genre boundaries with catchy melody
The vocalist KAZUKI UJIIE’s singing voice captivates people with his natural singing voice that will keep you on your ears once you hear it.
“Lens,” released last October, was selected as the background music for ABEMA’s “Don’t Be Deceived by You and the Wolf,” and in February this year they released their first EP, “Backlight,” and were selected for the FM802 heavy rotation in February, making it the most popular band of 2025.
YouTube: https://www.youtube.com/@BILLYBOO_OFFICIAL
X: https://x.com/BILLYBOO_offici
Instagram: https://www.instagram.com/billyboo_official/
●Information on the TV anime “The Mystery Solved After Dinner”

■Broadcast information
Starting broadcasting on Fuji TV’s “Noitamina” nationwide from Friday, April 4, 2025, every Friday at 11:30pm
AT-X Starting Sunday, April 6th, 2025, broadcast every Sunday at 9:00pm
(Rebroadcast: Every Wednesday from 11:30pm, Every Sunday from 6:00pm)
■Delivery information
Unlimited viewing available on Prime Video every Saturday from April 5th, 2025
■Introduction
A popular novel of the same name by Higashikawa Atsuya, which has been adapted into a comic, TV drama, movie, and stage play, has finally been made into a TV anime!
Hosho Reiko, a rookie detective at the National Police Station, is a young lady from the world-famous “Hosho Group.” Under Inspector Kazematsuri, the heir to Kazematsuri Motors, he is struggling with numerous incidents. When Reiko returns to her big mansion, she changes from a plain pantsuit to a dress and enjoys dinner, but every time she encounters an intricate incident, Kageyama, the “butler and driver” he talks about the whole story.
“Is the young lady’s eyes a bit sloppy?” – While pointing out Reiko’s lack of reasoning with a sharp tongue that makes him abusive, Kageyama vividly unravels the mystery of the incident.
The extremely popular mystery between a sharp-tongued butler and a lady detective duo has opened in a brilliant form an anime.
■ Official TV anime website/X
TV Anime HP:https://nazod-anime.com
TV Anime Official X:https://x.com/nazoD_anime
■Original work
Higashikawa Atsuya: “The mystery is solved after dinner” (published by Shogakukan)
■Staff
Character design: Tachibana Oreko
Director: Masuhara Mitsuyuki
Series composition: Kunisawa Mariko
Character Design: Kawada Izumi
Art settings: Yanai Kyoko, Takayama Masako, Fujise Tomoyasu
Art Director: Ogura Hiromasa
Color design: Ohno Harue
3DCG Director: Aragaki Hayato
Director of Photography: Inoue Hiroshi
Special Effects Director: Taniguchi Kumiko
Edited by: Tsukatsune Mariko
Sound Director: Shimizu Hiroshi
Music: Hahaha
Animation production: Madhouse
■Theme song
Ending theme: BILLY BOO “Rhapsody” (Sony Music Labels Inc.)
■Cast
Hosho Reiko: Hanazawa Kana
Kageyama: Kaji Yuki
Kazematsuri Kyoichiro: Miyano Mamoru
●Original information
The series has sold over 5 million copies! A very popular mystery novel about a butler detective and a young lady detective!
Original work: Higashikawa Atsuya, “The Mystery Solving After Dinner” (published by Shogakukan)
Official website of the original:https://www.shogakukan.co.jp/pr/nazoD/
Official X:https://x.com/nazoD3