Group Rainbow's member Jisook revealed a picture taken with Jaekyung.

Today, Jisook posted on her Twitter, "Kim sisters playing with nck pillows. Laughed so hard trying different positions with the pillow" along with a picture.

In the revealed picture, Rainbow's members Jisook and Jaekyung are playing with neck pillows around their heads.

Rainbow recently released their first official album Part-1 'Rainbow Syndrome!' and is currently working with their song 'Tell Me Tell Me.'

Photo Credit: Jisook Twitter