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is a Japanese female
idol group from
Akihabara
is a common name for the area around Akihabara Station in the Chiyoda ward of Tokyo, Japan. Administratively, the area called Akihabara mainly belongs to the and Kanda-Sakumachō districts in Chiyoda. There exists an administrative district ca ...
, Tokyo. Their music generally follows the style of
denpa song. All of its members are said to be former
otaku.
The group was formed in 2008 by producer
Maiko Fukushima, and released one indie single before undergoing some member changes and being signed to
Lantis and
Toy's Factory. Since then, they have released several charting singles and albums, performed many concerts around the world, and appeared in several television shows and a
2013 film.
Members
Source:
Former members
Timeline
History
2007–2012: Formation, member flexibility era

In December 2007, producer opened the
live house
A live house (ライブハウス) is a Japanese live music club – a music venue featuring live music. The term is a Japanese coinage ( wasei eigo) and is mainly used in East Asia. It most frequently refers to smaller venues, which may double as ...
/bar "" in the basement of a building near
the Suehirocho Station,
[''日本の若者は不幸じゃない'', p98-99] and moved it to the in September 2008.
[''日本の若者は不幸じゃない'', p108][''でんぱブック'', p32] In December 2008, DearStage salespeople Mirin Furukawa and Akari Owada formed the original
[''MUSIC MAGAZINE'', p30] and released the single "Mirror Magic?" through an indie label.
Fukushima said of the unit's name: "I wanted to give it a retrotic name like
Ushiroyubi Sasaregumi
was a female Japanese pop music duo consisting of Yukiko Iwai and Mamiko Takai, formed in 1985. In parallel to their membership in this duo, Iwai and Takai were at the same time members of Onyanko Club, a large pop group widely seen as a precurso ...
."
[''MUSIC MAGAZINE'', p48] Also, and , who participated in the naming conference at the time, said that the part of "Dempa" was taken from the Dempa Building.
In June 2009,
[ IDOL AND READ 004, p65] Meme Nishimura (now Risa Aizawa) and Nemu Yumemi joined.
Taking this opportunity, Fukushima considered changing Dempagumi's name to "renew it to a new feeling", and I will consult with Saeki.
Saeki proposed "Chapé's Fountain"
[''でんぱブック'', p33] but Fukushima wanted to keep the Dempagumi name and said "If it has an extension (a la MOSAIC.WAV, LOVE.EXE, etc.), it may be good for Akiba
ara
ARA may refer to:
Media and the arts
* American-Romanian Academy of Arts and Sciences
* '' Artistička Radna Akcija'', compilation album released in former Yugoslavia
* Associate of the Royal Academy, denoting membership in the British Royal Aca ...
" So was proposed that ".inc" would be added, renaming it "Dempagumi.inc".
Various accounts vary about the reason "inc" was selected.
The meaning of "Dempagumi's evolutionary system" was once considered. According to Saeki, it is absolutely necessary to avoid unit names ending in "gumi" because they will be a follow-up to the aforementioned Ushiroyubi Sasaregumi. Another reason is that "it would be interesting "inc" was added to the end of a company
ame #REDIRECT AME #REDIRECT AME
{{redirect category shell, {{R from other capitalisation{{R from ambiguous page ...
{{redirect category shell, {{R from other capitalisation{{R from ambiguous page ...
.
In addition, according to Yumemi, "The interpretation that Aizawa and Yumemi joined 'Dempagumi' and renamed it Dempagumi.inc is a little different." It is also said that it was four people of Furukawa, Owada, Aizawa, and Yumemu who happened to have passed, and it is said that it was something which was collected regardless of the original "Dempagumi".
Although the original name is "でんぱ組.inc", the debut single released by Lantis mistakenly named them as "でんぱ組inc."
On February 24, 2010, their debut single "" with , which featured the music of the PC game "Tropical KISS", was released from Lantis.
[''MUSIC MAGAZINE'', p42][''でんぱブック'', p34] Eitaso and Miu Atobe joined on June 3,
and Owada graduated on July 8. On August 15, Meme Nishimura was renamed Risa Aizawa,
[''IDOL AND READ 004'', p76] and on January 28, 2011, Eitaso was renamed Eimi Naruse. On July 6, the second single "", Denpagumi.inc's first single release, was released from Lantis,
[''でんぱブック'', p35] and Aizawa became the group leader at the same time.
On September 9, they were transferred to MEME TOKYO, a label newly co-founded by Fukushima and
Toy's Factory. Their third single was released on November 16, and their first album, , was released on December 14 by MEME TOKYO. After their first one-man performance at Harajuku Astro Hall, Atobe graduated, and Moga Mogami and Ayane Fujisaki joined.
2012–2015: One Man Tour, Nippon Budokan, Oricon #1

On February 26, 2012, they were champions in the ''1st Idol Yokocho Cup!!''. Their fourth and fifth singles were released on May 23 and July 18. On June 15, debuted Dempagumi.inc's variety show '. On September 16, the first one-man live was held with six members, and in the show, Furukawa stated "The members discussed and set goals, and they wanted six people to
erformat
Budokan">ipponBudokan!".
Dempagumi.inc's first tour was held from January 5 to 20, 2013. On January 16, their sixth single, , was released, and become their first
Oricon Singles Chart
The Oricon Singles Chart is the Japanese music industry-standard singles popularity chart issued daily, weekly, monthly and yearly by Oricon. Chart rankings are based on physical singles' sales. Until 2017, Oricon did not track download sales. In J ...
Top 10 single, and their seventh single was released on May 29, charting at #6. They later performed at on August 31 and
Hibiya Open-Air Concert Hall
The is an outdoor theater in Tokyo, Japan's Hibiya Park. There are actually two concert halls; the smaller was erected during the Meiji era, and the larger was first built in the Taishō era. The larger venue is colloquially abbreviated to .
No ...
on September 16. Their eighth single was released on October 2, and their second album "" was released on December 11. The band's official fan club, , started on May 28, 2013.
The second national tour started on January 4, 2014. During Day 2, was projected on the screen, and it was a surprise announcement that the Nippon Budokan performance would be held.
The members who had not been informed in advance cried, and Furukawa said, "I am really happy because I wanted to go to the Budokan during this year,"
and "a dream really comes true." The performance was held on May 6, and drew a crowd of 10,000 people.
On March 12, the ninth single was released, and two more on May 14 and July 30. A national live house tour was held from July 23 to September 2. On September 20, their next single, ''Stand〜Koko ni iru yo〜'', was released for their collaboration unit with , .
On October 19, their first show on terrestrial television, ' debuted on
Fuji TV. On October 25, they performed at "Anime Idol Asia" in
Bangkok, Thailand
Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estimated population ...
, alongside
Yumemiru Adolescence
, commonly abbreviated as , is a Japanese idol girl group. Their single "Maijene!" reached the fourth place on the weekly ''Oricon'' Singles Chart.
On February 3, 2021, their first sister group, YumeAdo Europe (stylized as YUMEADO EUROPE), was a ...
and the
Kamen Rider Girls
are an idol group developed by Avex Trax and Ishimori Productions to commemorate the Kamen Rider Series' 40th anniversary in 2011. Each of the group's current members represent one of the protagonists of the Kamen Rider Series. The group made ...
.
On November 12 their next single "Ai ga aru kara!!" was released under the "Dempagumi.inc×gdgdYōseis" moniker. On November 26 their next single ' was released.
2015–2017: Yoyogi Gymnasium performance, Battle of the Bands tour

On February 10 and 11, 2015, a concert was held at
Yoyogi National Gymnasium
Yoyogi National Gymnasium, officially is an indoor arena located at Yoyogi Park in Shibuya, Tokyo, Japan, which is famous for its suspension roof design.
It was designed by Kenzo Tange and built between 1961 and 1964 to house swimming and d ...
for two days, with an audience of 20,000.
A national tour was held from February 27 to May 6. From July 16 to August 6, they hosted the
Battle of the Bands tour "Kagayaki Tour".
On September 26 and 27, they held a live performance at the , claiming that it will be the final round of the World Tour (consecutive appearances to overseas Japanese cultural events) in June and July.
On June 19 they made their first appearance on ''
Music Station''.
Their third album "" was released on February 18. On April 29, for their collaboration unit "Shokotan♥Dempagumi" with
Shoko Nakagawa, their single "" was released.
On June 13, their 13th single was released. On September 16, their 14th single "" was released, becoming the first one to top the Billboard Japan single charts.
In addition, on October 9 and December 18, distribution limited singles were released, and Aizawa worked on the jacket illustrations of both singles.
The "Best Japanese Act" voting at the
2015 MTV Europe Music Awards
The 2015 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Mediolanum Forum in Assago, near Milan, Italy, on 25 October 2015. This was the third time the awards have taken place in Italy, second time Milan has been the host ...
was held on Twitter on September 15. On October 15 the result of the web voting was to be the Japan representative.
In 2016, three singles were released once a month from January to March. A tour of 30 performances from 21 prefectures was held from January 9 to April 2. Their fourth album "" was released on April 27. A second Battle of the Bands tour was held from July to September.
As a tie in with the anime ''
The Disastrous Life of Saiki K.
is a Japanese manga series written and illustrated by Shūichi Asō. Following a series of one-shot chapters published from 2010 to 2011, the manga was serialized in Shueisha's ''Weekly Shōnen Jump'' from May 2012 to February 2018. It ...
'', the ending theme was released on August 8, and their 15th single, , was released on November 2. On December 21, their first best album was released.
2017–2019: Member count changes in six years
They performed for the "Makukō Arena Tour 2017 Denpa Ryōkō Wi-Fi Kanbi!" in January 2017 in three arenas: the
World Memorial Hall
or World Hall is a multi-purpose arena located in the Chūō-ku Ward of Kobe, Japan. It has a maximum capacity of 8,000 people and is optimized for large-scale meetings, sport events, trade shows and concerts. It is located on the artificial isl ...
; the
Makuhari Messe
is a Japanese convention center outside Tokyo, located in the Mihama-ku ward of Chiba City, in the northwest corner of Chiba Prefecture. Designed by Fumihiko Maki, it is accessible by Tokyo's commuter rail system. ''Makuhari'' is the name of ...
; and for an extra performance on the 20th, the Nippon Budōkai.
On August 6, Mogami announced on her blog that she left the group on the same date:
She later began to work as a solo artist.
On September 1, the official site was redesigned to five.
They appeared as a special guest at the reception party of
Takashi Murakami's solo exhibition at the
Garage Museum of Contemporary Art in Moscow, Russia on September 28 and presented her first live performance with a new five-member system.
At the Osaka Castle Hall on December 30, it was announced that
Rin Kaname and
Nagi Nemoto Nagi may refer to:
Places
*Nagi, Okayama, a town in Japan
*Nagi Station, a railway station
* Nagi, Nepal (disambiguation), several places
* Nagi, Panchthar
*Nagi, an island in the Torres Strait island group more commonly (but incorrectly) spelled ...
would join Dempagumi.inc.
They turned to the space motif orientation from the early days, and in 2018, experienced astronaut training at the Tsukuba Space Center. They also carried out the world's first "stratosphere balloon project in Mongolia" in MV photography. On April 4, their sixteenth single was released.
Dempagumi.inc served as headliner several large festivals, including 2018. On May 23, they performed at "GIRLS POWER LIVE" at
Yokohama Arena. From April to July, they held their first one-man national hall tour with seven people, Cosmo Tour 2018-Planetary Exploration-". On July 7th, they made their second appearance at the Kawaguchiko Stella Theater, "July 7 is the Tanabata Festival Arc". They have also appeared in events across the country and abroad, and also visited three live houses in the "Tohoku Danpa Daisakusen" in early August. Furthermore, from July to September, they also sponsored "Cosmo Tour 2018 – Encounter with the Unknown ~" and "Reunion with the Known –". On September 26, their 17th single "" was released. In "Okinawa Special Edition"