Seo In Guk played the loser role and established himself as an actor. 

On the episode of the MBC weekend drama "Rascal Sons," that aired on Saturday, Yoo Seung Gi (Seo In Guk) was seen trapped in a warehouse, trying to come out of it. 

After Yoo Seung Gi fought with his wife Park Mi Rim, he ran away from home and went to the storage house. Yoo Min Gi (Ryu Soo Young) didn't realize that Yoo Seung Gi was in there and he locked the door. Yoo Seung Gi spent a whole night trapped in there. 

He had a hard time, because he wasn't able to drink water or go to the bathroom. His expressions showed that he was having a difficult time. 

Yoo Seung Gi tried to call his brother, who couldn't answer because he was in the mountains. The next day, his brother saw all of the missed calls and ran to the garage. He took Yoo Seung Gi back into the house. 

Yoo Seung Gi was seen returning home after the fight and began to quickly eat food. He is the most immature character in the drama "Rascal Sons." Seo In Gook was able to act as this character and made the viewers laugh. 

Seo In Gook acted in a way that made viewers forget his acting as Yoon Yoon Jae in the tvN drama "Respond 1997." He is successfully transitioning from a singer to an actor.