Before The Secret is Revealed

Jeong Jae-heon

Kim Wook (voice)

Park Si Un

Yeon Woo (voice)

Kim Seo-young

Su Yeon (voice)

Jeong You Jung

Ha Eun (voice)

Yoon Ah-young

Seo Yena (voice)

Chae Min Ji

Yeo Reum (voice)

Shim Kyu-hyuck

Han Do Yoon (voice)

Choi Seung Hun

Gun Ha ( voice)