Love Live! Superstar!! Chii-chan Buchou wa Yuunou desu!

Synopsis

Chisato Arashi is the president of Yuigaoka Girl's High School Idol Club. They are working hard to win the Love Live! competition. Singing, dancing and performing on stage... Liella! is still in a lot of trouble! "No problem, I, Chisato Arashi, will take care of everything!" (Source: Kadokawa, translated)