Jess 31 has 1 Kep1er concert.

Kep1er (케플러) is a nine-member girl group under WAKEONE and Swing Entertainment. The group was formed by the survival show Girls Planet 999 and consists of Cube Entertainment's Choi Yujin (최유진), TOP CLASS Entertainment's Shen Xiaoting (沈小婷), 143 Entertainment's Sakamoto Mashiro (坂本 舞白), WAKEONE's Kim Chaehyun (김채현), Jellyfish Entertainment's Kim Dayeon (김다연), Avex Artist Academy's Ezaki Hikaru (江崎 ひかる)...