Hidden Card (Girls Planet 999) Profile & Facts Hidden Card is a temporary group formed by Girls Planet 999 during the CONNECT Mission. This group consisted of Zhou Xin Yu, Wu Tammy, Sim Seung Eun, Ando Rinka, Yoon Jia, Chien Tzuling, Shima Moka, Sakurai Miu and Kim Da Yeon. Sim Seung Eun Stage Name: Seungeun (승은) Birth Name: Shim … Continue reading Hidden Card (Girls Planet 999) Profile & Facts