Soo Yeon Goes Missing - S1.E30

Soo Yeon gets nose blood in front of Yeo Reum. Yeo Reum tries to help Soo Yeon, but he refuses Yeo Reum’s help and goes to a restroom alone. Then, a group of thugs follows into the restroom. One of them looks familiar to Soo Yeon, and they take Soo Yeon somewhere. When Security Services staff arrives at the mensroom, Soo Yeon is not there. Then, everyone including Moo Ja and In Woo starts to find Soo Yeon.