Vitamin SUMMER! / Chance Day, Chance Way!

 is the tenth single by Liella!. It in two versions: the "Episode 6 Edition" and the "Episode 8 Edition".

The single contains the insert songs featured in the sixth and eighth episodes of the anime ''Love Live! Superstar!! Season 2'' and a new song which is different in each version as well as their off vocal tracks.

Episode 6

 * 1) Vitamin SUMMER! (ビタミンSUMMER!)
 * 2) Chance Day, Chance Way!
 * 3) Utopia Magic (ユートピアマジック)
 * 4) Vitamin SUMMER! (ビタミンSUMMER!) (Off Vocal)
 * 5) Go!! Restart (Go!! リスタート) (Off Vocal)
 * 6) Utopia Magic (ユートピアマジック) (Off Vocal)

Episode 8

 * 1) Vitamin SUMMER! (ビタミンSUMMER!)
 * 2) Chance Day, Chance Way!
 * 3) POP TALKING
 * 4) Vitamin SUMMER! (ビタミンSUMMER!) (Off Vocal)
 * 5) Go!! Restart (Go!! リスタート) (Off Vocal)
 * 6) POP TALKING (Off Vocal)

Featured members

 * Date Sayuri - cast of Shibuya Kanon
 * Liyuu - cast of Tang Keke
 * Misaki Nako - cast of Arashi Chisato
 * Payton Naomi - cast of Heanna Sumire
 * Aoyama Nagisa - cast of Hazuki Ren
 * Suzuhara Nozomi - cast of Sakurakoji Kinako
 * Yabushima Akane - cast of Yoneme Mei
 * Ookuma Wakana - cast of Wakana Shiki
 * Emori Aya - cast of Onitsuka Natsumi