Group BTOB's member Yook Sungjae showed off his good looks.

On December 8, Yook Sungjae posted on his Twitter, "It's monday. Let's all cheer up until the weekend!" along with a picture.

In the picture, Yook Sungjae is sitting on a sofa and is looking at the camera. He is neatly dressed in a formal outfit with lighter hair color from before.

Internet users who saw this commented, "Yook Sungjae keeps getting better looking," "The lighter hair color looks good on you too," and "So charming."