A-Jax performed at the "A-Nation" concert on Thursday at Tokyo Yoyogi Stadium and decorated the opening stage, as a new rookie group representatives. They performed debut song "One For You" in Japanese version and "Hot Game," grabbing attention of 12,000 audiences in the stadium as they introduced themselves in Japanese. The members commented "We will be a team who does well in both Japan and Korea."

Photo Credit: A-Jax