LEIWAN

 (レイワン) is an idol group formed in 2018. They were formed as a sister group to AIBECK.

They began activities under the name AIQ and stopped activities in December 2018. They redebuted as Terror Rhythmn (テロリズムン) in early 2019 and changed to their current name at the beginning of the Reiwa era.

Current Members

 * Mio Monster (澪・モンスター) (Joined February 2019; Concurrent member of EMPATHY)
 * Nekono Nemuko (猫乃ねむ子) (Joined August 2018)
 * Kuroi Mashiro (黒井マシロ) (Original Member)
 * Uzuki Ayaka (卯月彩華) (Joined February 2019)

Former Members

 * Futaba Momo (双葉モモ) (Original Member; Withdrew August 2018)
 * Shion Rina (紫音リナ) (Original Member; Withdrew August 2018)
 * Saki Scream (サキ・スクリーム) (Original Member; Graduated December 2018)
 * Anaru Rairai (愛成来来) - Temporary Member (Joined November 4, 2022; Training ended November 13, 2022)

Digital Best Albums

 * 1) [2020.06.01] 01BEST

Best Albums

 * 1) [2022.10.26] 01 Sound BEST / 01 Chougouka BEST (01 Sound BEST / 01 超豪華BEST; 01 Sound BEST / 01 Luxury BEST)

Digital Singles

 * 1) [2020.10.20] Daijoubu (ダイジョウブ; All Right)
 * 2) [2021.01.01] RaiRai (ライライ)
 * 3) [2021.03.20] Gekokujou Mountain (下克上マウンテン; Juniors Dominating Seniors Mountain) feat. Tackro
 * 4) [2021.05.29] iyada
 * 5) [2021.06.29] NANde
 * 6) [2021.07.29] ATIATIANTI (アチアチアンチ)
 * 7) [2021.09.05] SHINKIBA (新牙-SHINKIBA-)
 * 8) [2021.09.29] Watashi ga Anata no Kanojo ni Nattara (私がアナタの彼女になったら; If I Became Your Girlfriend)
 * 9) [2022.01.01] Akeome☆Party Night (あけおめ☆パーリーナイト; Happy New Year☆Party Night)
 * 10) [2022.03.19] ZANGE
 * 11) [2022.04.25] 〇〇Idol Bokumetsu Undou (〇〇アイドル撲滅運動; 〇〇 Idol Extermination Campaign)
 * 12) [2022.07.26] Bunshaka (ブンシャカ)
 * 13) [2022.07.28] Start Line (スタートライン)
 * 14) [2022.09.04] 0
 * 15) [2022.10.01] Aburakatabura (アブラカタブラ)

Solo Digital Singles

 * 1) [2022.10.20] SHINKIBA (新牙-SHINKIBA-) - Mio Monster

Collaboration Singles

 * 1) [2023.02.14] Seitansai (生誕祭) (With AIBECK and EMPATHY)

Video Releases

 * 1) [2021.10.27] LEIWAN DREAM one-man LIVE "SHINKIBA STUDIO COAST" ~Yume Kanae, Arata na Kiba wo Muke~ (LEIWAN DREAM one-man LIVE 『新木場STUDIO COAST』 〜夢叶え、新たな牙を剥け〜)