Wonder Weed

 (ワンダーウィード) was an idol group. They debuted on July 28, 2015, and were active until February 2020, when they announced a complete restructuring into multiple new units. At this time, WONDER BREED was revealed as a group of candidate members for the new groups. The final units, Hana Iroha from Wonder Weed and Wonder Weed Ten, were announced later that month

Final Lineup

 * Sakura Chihiro (佐倉ちひろ) - Leader (Joined April 19, 2016)
 * Yoshizawa Emiri (吉沢えみり) (Joined January 8, 2018)
 * Shirakawa Yumeka (白川ゆめか) (Joined April 2, 2018)
 * Motomiya Haruna (本宮はるな) (Joined October 2019)

WONDER BREED

 * Aoi Kokoa (葵井ここあ)
 * Natsukawa Suzuka (夏川すずか)
 * Tsukushi Arisa (筑紫ありさ)
 * Hasumi Erena (蓮実えれな)
 * Kayama Yukiho (香山ゆきほ)
 * Touto Maika (桃兎まいか)

Former Members

 * Shiraishi Misaki (白石美咲) (Graduated August 29, 2015)
 * Yumefuji Eden (夢藤エデン) (Graduated June 29, 2016)
 * Suzuki Natsumi (鈴木なつみ) (Graduated December 11, 2016)
 * Miura Miria (三浦みりあ) (Joined July 10, 2016; Graduated December 31, 2017)
 * Nanase Maiko (七瀬まいこ) (Joined July 10, 2016; Graduated December 31, 2017)
 * Ushii Hikari (牛居ひかり) (Joined September 21, 2015; Graduated March 26, 2018)
 * Takizawa Akina - Leader (滝沢あきな) (Graduated November 25, 2018)
 * Hanasaki Hinata (花咲ひなた) (Joined April 2, 2018; Graduated November 25, 2018)
 * Kamiki Yuzuka (上木ゆずか) (Joined July 1, 2018; Graduated August 2019)
 * Shibata Kanon (柴田かのん) (Joined March 1, 2018; Graduated September 2019)
 * Kamiya Niina (神谷にいな) (Joined October 2019, Expelled December 2019)

Singles

 * 1) [2016.02.09] get to chance
 * 2) [2016.10.11] BANJIKYUSU PARTY
 * 3) [2017.06.10] Rokutousei (六等星)
 * 4) [2018.06.06] Parallel world
 * 5) [2019.07.31] Baltan Seijin (バルタン星人)