Hiroyuki Jun is a Japanese idol singer.She is a former member of IWB48's Team I,and was known as the "main center" of IWB48.Eversince the groups debut in 2010,she had been the center girl (along with fellow members Akutagawa Suzume and Genji Ran).On December 23,Hiroyuki announced that she was graduating from Team I to become a soloist within IWB48.March 8,Hiroyuki graduated from Team I.

During IWB48's 1st Saizensen Vote in 2010,Hiroyuki was close to winning but lost to Akutagawa,who lead their debut single,Give Me Strength!.During IWB48'S 2nd Saizensen Vote,Hiroyuki won against Genji Ran,and lead the single Tachimasu.But during IWB48's 3rd Saizensen Vote in 2012,Hiroyuki tied with Akutagawa and Genji,so the three lead the single Get Up!Iku!.


  • Name: Hiroyuki Jun (淳之)
  • Nicknames: JunJun (ジュンジュン),Yuuchii (ゆうちぃ)
  • Birthdate: April 14,1997 (age 15)
  • Birthplace: Iwate,Oshu,Japan
  • Bloodtype: B
  • Hobbies: Acting,Swimming
  • Audition song: Sakura no Hanabiratachi- AKB48
  • Catchphrase: "You say Yuu,I say Yuu,We say Yuuchii! From Oshu~u it's,Y.U.U.CHII!". (Japanese: Anata wa Yū to iu, watashi wa yū to iu, wareware wa Yū chi ~i o iu! Ōsu 〜 U kara wa, Y. U. U. CHII da!)
  • Height: 166 cm
  • Bust: 78 cm
  • Waist: 55 cm
  • Hips: 78 cm
  • Agency: STAR48 (2010-2013),THE QUEEN (2013-present)

IWB48 Saizensen VoteEdit

  • Ranked 2nd in the 1st Saizensen Vote,held in 2010
  • Ranked 1st in the 2nd Saizensen Vote,held in 2011
  • Ranked 1st (with Akutagawa and Genji) in the 3rd Saizensen Vote,held in 2012



  1. [2013.07.18] My fate
  2. [2013.09.24] Green NAIL POLISH
  3. [2013.11.08] Aho! (Stupid!)


  1. [2011.02.19] BE YUU
  2. [2013.04.15] Solo

Single ParticipationEdit

IWB48 SinglesEdit

  • Give Me Strength!
  • Bara no Girl
  • Nigeru
  • Tachimasu
  • Watashi ni kisu suru
  • Party!Party!Party!
  • Egao no MACHI
  • Get Up!Iku!
  • RUN
  • Yokatta~Shippai
  • Genki-chan-san!
  • Wasurenaide kudasai! (Last Single)


  • Watashi Wo Daite (STREAM)
  • Kakushin (STREAM)
  • APOLOGY (IWB48's Team 8 ft. Hiroyuki)



  • [2010.11.30] Shizukani.
  • [2011.04.15] Shizukani II
  • [2011.10.15] Mug
  • [2012.07.??] Kueki Ressha


  • [2010.10-2010.12] Q10
  • [2011.04-2011.05] Kyou wa watashi tanjo bi desu!
  • [2012.03-2012.05] LEAVE



  • [2010.06.17] Yuuchii
  • [2011.04.15] UNFORGETTABLE
  • [2011.10.12] Ame.
  • [2012.12.19] UNFORGIVEABLE
  • [2013.01.23] You got Yuu'd!


  • Has named Akutagawa Suzume her rival.
  • Favourite kind of sushi is shellfish.
  • Hiroyuki says she wants to go further with her acting career.
  • The first Hello!Project CD she ever bought was Fighting Pose Wa Date Ja Nai! by Berryz Koubou.
  • The first AKB48 CD she ever bought was Bingo!.
  • On IWB48's show,IWBKYO!,it is shown that she can't live without her Lucky Star Konata figure.
  • Has a close relationship with Team I member Akaike Amy.
  • Because she shared the same nickname with former Morning Musume member JunJun,she gave herself the nickname Yuuchii.
  • Hiroyuki has met Selena Gomez before.It was back in 2011.
  • Her favorite Stage48 group,besides IWB48,is JKT48.
  • Her favorite Hello!Project groups are C-ute and Berryz Koubou.
  • Hiroyuki became a soloist to experiment how it was as a soloist.
  • Hiroyuki cried when she couldn't remember her some of her lines for the Kyou wa watashi tanjou bi desu! stage play.
  • She seems to get along well with HKT48 member Murashige Anna.