Even though Cassiopeia had great reactions to the duo’s songs, they seemed more enthusiastic for songs from albums made by the original five members. During an acoustic session, the guys appeared in shorts and casual clothes and the set looked like a campsite. They sang romantic songs from the original line-up, including “I Believe,” “My Little Princess,” “You Only Love,” “Tonight” and “You’re My Melody.” These songs made some fans burst into tears by bringing back memories from the past. To make the acoustic set more special, everyone in the hall changed their red lights to beautiful blue.