02. TRANCE TOURS
03. Cosmic CoaSTAR(ビッグでバンなアラウンド！ Remix)
04. Happy Music♪(Hello World Remix)
05. アトモスフィアラウンド -instrumental-
06. TRANCE TOURS -instrumental-
Yohba Gakuen high school student unit "Happy Around!" appeared in Bushiroad's media mix project "D4DJ" with the theme of "DJ". Concept CD release from Happy Around! there is M1's "Atmosphere Round" is a song written according to the story "Side: origin" of the smartphone rhythm game "D4DJ Groovy Mix (Gurumiku)". M2's "TRANCE TOURS" is a cool song with a sense of speed, and it's a song that you should definitely listen to on this occasion. M3 and M4 contain two special remix songs created for this work.
Heart Company, which is in charge of producing Happy Around! music for M3, and Suteki Music, who is in charge of producing Lyrical Lily's music for M4, are in charge of remixing.
It is a song that you can feel on one side.