Vivid brilliant door!

 is the 17th single by sphere. It was released on July 15, 2015, and peaked at #16 on the Oricon single chart.

Single Information
vivid brilliant door! was used as the second opening theme for the anime Denpa Kyoushi.

CD

 * 1) vivid brilliant door!
 * 2) Imagination wa Owaranai (イマジネーションは終わらない)
 * 3) vivid brilliant door! (Off Vocal)
 * 4) Imagination wa Owaranai (イマジネーションは終わらない) (Off Vocal)

DVD

 * 1) vivid brilliant door! (Music Video Clip)

Featured Members

 * Tomatsu Haruka
 * Takagaki Ayahi
 * Kotobuki Minako
 * Toyosaki Aki