2015

2015 was the year that WACK's third official unit, BiSH, was formed. This same year, Mizuta Mari graduated from Pla2me, causing the unit to change its name to POP and add new members Yamamachi Miki, Yumeno Yua, Inukai Maaya and Shigusawa Ao. At the end of the year, this is not a business disbanded.

Members

• ??: Momose Momo and Yasui Yuuhi join BILLIE IDLE®.
• January 13: Watanabe Junnosuke announces his plans to form BiSH.
• February 8: Yuffytas is formed, with Terashima Yufu as a member.
• February 15: Aoi Chihiro graduates from Tsuyogari Sensation.
• February 27: MIKINORME goes on indefinite hiatus.
• March 7: Iitani Aina graduates from Parallel.
• March 9:
  • Kisemimori changes stage name to Hug Mii.
  • Yashiro Yuka changes stage name to Yukako Love Deluxe.
  • Aoi Chihiro changes stage name to Cent Chihiro Chittiii.
  • Iitani Aina changes stage name to Aina The End.
  • BiSH is formed with Hug Mii, Yukako Love Deluxe, Cent Chihiro Chittiii, Aina The End and Momoko Gumi Company as founding members.
• March 22: De☆Ful disbands.
• March 26:
  • Kashiwagi Yuki leaves NMB48.
  • Kashiwagi Yuki joins NGT48.
• March 27:
  • Soumoto Kaori graduates from Maison book girl.
  • Wada Rin joins Maison book girl.
• March 31: Mizuta Mari announces her graduation from pla2me.
• April 3: Yukako Love Deluxe leaves BiSH and WACK.
• April 29: Morphine Tokyo goes on hiatus.
• May 31:
  • Mizuta Mari graduates from pla2me and WACK.
  • pla2me changes name to POP.
  • Inukai Maaya, Shigusawa Ao, Yamamachi Miki and Yumeno Yua join POP.
  • Ichigo Rinahamu and nicamoq form BPM15Q.
• June 4: Reona joins Baby dolls as "Tsuda Reona".
• June 7:
  • Yukako Love Deluxe changes stage name back to Yashiro Yuka.
  • MIKINORME resumes activities with Yashiro Yuka as the sole remaining member.
  • MIKINORME changes name to mikinormu.
• June 12:
  • Mizuta Mari joins Natsu no Mamono
  • Mizuta Mari changes stage name to Izumi Mari.
• June 29: Kato Kouban leaves this is not a business and WACK.
• July 12:
  • Tanigaki Kaede joins iDOL STREET's street-sei.
  • Yamamoto Hinata joins CDEAngel.
• August 1: Tanigaki Kaede joins SAPPORO Snow♥Loveits.
• August 5:
  • Kuramoto Aoi changes stage name to Hashiyasume Atsuko.
  • Hashiyasume Atsuko and Lingling join BiSH.
• August 11: Kamiya Saki is suspended from POP
• August 25: Watanabe Junnosuke joins this is not a business as their temporary vocalist and "original Kato Kouban".
• September 7:
  • A third "Kato Kouban" joins this is not a business.
  • Watanabe Junnosuke leaves this is not a business.
• November 5: Mtopi forms with Mizuta Mari as a founding member.
• November 11: Morphine Tokyo disbands.
• November 24: this is not a business disbands.
• December 5: Kamiya Saki resumes activities with POP.
• December 30: Nakayama Yukiko forms The End with Miifuu and ex-Morphine Tokyo members.
• December ??:
  • Minami Hana joins Naturallium.vivid.
  • Tentenko forms MikaTen with former BiS Kaidan member Mikawa Toshiji.

Singles

• January 14: Good bye, Good girl. - Tentenko
• January 30: UNIT - pla2me
• February 25: Kimi ga Waraeba Koi Nano Desu - Yuffytas
• March 14:
  • White - Maison book girl
  • Black - Maison book girl
• March 25: Rip Me - LUI FRONTiC Akabane JAPAN
• April 18: Migite Hidarite - Florida
• May 1: Hamu Tail - Ichigo Rinahamu
• May 20: Fuhehehehehehehe Dai Sakusen - Terashima Yufu
• June 5: Party Friends / OVERLIGHT - Shibuya DOMINION
• July 18: NO!!NO!!! - Nono
• August 12: Wonderloop - LUI FRONTiC Akabane JAPAN
• August 16: Poisute, Dame, Dame! - Ichigo Rinahamu
• August 26: Renai Shijou Shugi Summer Everyday/Doki Meki Library - Natsu no Mamono
• September 2: OTNK - BiSH
• October 23: BPM15Q! - BPM15Q
• November 11: Iyahaya Feeling - Terashima Yufu
• December 8: Happy Lucky Kirakira Lucky - POP

Digital Singles

• March 2: Anarchy in the music scene - BILLIE IDLE®︎
• March 25: Spark - BiSH
• April 1: Be my boy - BILLIE IDLE®︎
• April 9: Saraba Kana - BiSH
• April 16:
  • SCHOOL GIRLS, BANG BANG - BiSH
  • Pirapiro - BiSH
• May 9:
  • HUG ME - BiSH
  • MONSTERS - BiSH
• May 16:
  • TOUMIN SHOJO - BiSH
  • DA DANCE!! - BiSH
• May 21:
  • Karada Ideology - BiSH
  • Is This Call?? - BiSH
  • Lonely Girl - BiSH
  • Story Brighter - BiSH
• September 2: Be-bop tu-tu - BILLIE IDLE®︎
• November 20: ALL YOU NEED IS LOVE - BiSH
• December 10: Primitive - BiSH
• December 17: Want - BiSH
• December 24:
  • beautiful-sa - BiSH
  • December 24: Migatte I Need You - BiSH

Albums

• February 8: Suki ga Hajimaru II - Terashima Yufu
• March 3: Sekai no Owari no Izukoneko Original Soundtrack - Izukoneko
• March 11: THIS IS NOT A BUSINESS - this is not a business
• March 20: Dokusai - Tentenko
• April 1: IDLE GOSSIP - BILLIE IDLE®︎
• May 27:
  • Brand-new idol SHiT - BiSH
  • DJ MEGUMI'S BiS MiX - BiS
• June 23: FLORIDA - Florida
• July 8: O, Nedan Ijou. Tengu - this is not a business
• August 4: P.O.P - POP
• September 4: Tentenko sings Halmens - Tentenko
• September 16: ROCK "N" ROLL IDLE - BILLIE IDLE®︎
• September 23: Bath room - Maison book girl
• September 28: Coshoji Megumi Seitansai Gentei CDR - Coshoji Megumi
• September 29: JUMP!!! - Shibuya DOMINION
• September 30: Hibiya Kouen - Tentenko
• October 30: Tentenko no Seimei dai Yakushin - Tentenko
• December 4: CONDUCT OF HUMAN BEINGS - Tentenko

DVD/Blu-Ray/VHS

• January 14: Good bye, Good girl. - Tentenko
• July 22: Kanzenban BiS Cannonball 2014 - BiS
• August 12: Wonderloop (DVD Edition) - LUI FRONTiC Akabane JAPAN
• December 23: Sekai no Owari no Izukoneko - Izukoneko

Music Videos

• January 11: Rip Me - LUI FRONTiC Akabane JAPAN
• March 3: AKANE-CHAN - this is not a business
• March 16: Anarchy in the music scene - BILLIE IDLE®︎
• April 16: Be my boy - BILLIE IDLE®︎
• April 23: Fuhehehehehehehe Dai Sakusen - Terashima Yufu
• April 28: BiSH - Hoshi Ga Matataku Yoru ni- - BiSH
• July 30: Wonderloop - LUI FRONTiC Akabane JAPAN
• August 4: pretty pretty good - POP
• August 14: OTNK - BiSH
• August 19: BPM15Q! - BPM15Q
• September 2: Be-bop tu-tu - BILLIE IDLE®︎
• September 9:
  • snow irony - Maison book girl
  • Bath room - Maison book girl
• October 26: Iyahaya Feeling - Terashima Yufu
• November 24: Happy Lucky Kirakira Lucky - POP
• December 31: Furachine - LUI FRONTiC Akabane JAPAN

Publications

• January 16: Coshoji Megumi - Coshoji Megumi
• January ??: Tentenko ZINE 3 - Tentenko
• May 20: Tentenko ZINE 4: Piece of Dream - Tentenko

Theatrical Releases

• March 7: Sekai no Owari no Izukoneko - Izukoneko

Events

Oneman Lives

• May 31st: THiS iS FOR BiS - BiSH (First oneman live)
• August 12: Period Of Plastic 2 Mercy - POP (Debut performance of Yamamachi Miki, Yumeno Yua, Inukai Maaya and Shigusawa Ao)
• August 26: TOKYO BiSH SHiNE - BiSH (Debut performance of Hashiyasume Atsuko and Yamamachi Miki)
• September 6: BiSH FES!! - BiSH
• December 5: COME BACK MY... - POP (Kamiya Saki comeback event)
• December 19:
  • BiSH no COME ON GiRLS - BiSH (Women's-only event)
  • BiSH Moschin Japan 2015 - BiSH (Mohawk-only event)

Tours

• February 1 - 8: Tengu no Tsutaetai Koto ga Arunda TOUR - this is not a business
• February 22 - May 23: Regular Performances of Pla2me
• May 5 - June 5: This is Not a Business"CROWN TOUR"
• July 4 - August 23: FLASH BACK ZOMBiES TOUR - BiSH
• October 24 - December 13: Eden of Sorrow Tour - BiSH

Other Performances

• January 11: BILLIE IDLE LAUNCH SHOW - BILLIE IDLE®︎ (Debut performance)
• April 1, May 4: IDLE GOSSIP SHOW (NOT IDOL, NOT KAWAII) - BILLIE IDLE®︎
• April 30: BiSH surprise debut performance at Iinioi no Suru Iki no Iiyatsura TOKYO
• June 6: BILLIE IDLE® presents First Summer Days - BILLIE IDLE®︎
• December 12: BILLIE IDLE® presents Brand-new Idle Society - BILLIE IDLE®︎, POP, LUI FRONTiC Akabane JAPAN, Maison book girl, Tentenko (First Generation BiS reunion show)

Other

• January 1st: BILLIE IDLE®︎ radio show, "IDLE TALK" begins broadcasting.
• June 2: BiSH and POP 200km marathon.
• August 2nd: BiSH and POP get kicked out of TOKYO IDOL FESTIVAL for bad behaviour.
• December 4-5: Kamiya Saki 100km Marathon