JO1 is a Japanese boy group formed through the reality competition show PRODUCE 101 JAPAN. The group, managed by Lapone Entertainment, is composed of eleven members: Mamehara Issei (豆原一成), Kawashiri Ren (川尻蓮), Kawanishi Takumi (川西拓実), Ohira Shosei (大平祥生), Tsurubo Shion (鶴房汐恩), Shiroiwa Ruki (白岩瑠姫), Sato Keigo (佐藤景瑚), Kimata Syoya (木全翔也), Kono Junki (河野純喜), Kinjo Sukai (金城碧海), and Yonashiro Sho (與那城奨).