Group After School's past member Kahi revealed a self-camera photo.

She posted on her Twitter, "I can't stop smiling so my mouth hurts~ Good day, everyone~" along with a picture.

In the picture, Kahi is sitting in the driver seat of a car, smiling under the sunlight.

Internet users commented, "Good day", "Why are you getting prettier", "I miss you" and "We're waiting for your comeback."

Photo Credit: Kahi Twitter