ZE:A's Si Wan showed jealousy toward his fellow member Kwang Hee.

Yesterday, Si Wan posted on his Twitter, "The meeting of Si Wan and Choo Sung Hoon! But Kwang Hee came in and ruined the mood" along with a picture.

In the picture, Si Wan is wearing a cap and smiling brightly next to national player Choo Sung Hoon.

And next to Si Wan and Choo Sung Hoon, Kwang Hee is also posing at the camera. Si Wan must have been sad that he could not get a picture with Choo Sung Hoon alone because Kwang Hee entered the picture as well.

Internet users who saw this commented, "ZE:A the best," and "I feel like Kwang Hee and Choo Sung Hoon are close."

Photo Credit: Si Wan's Twitter