Bestest Little Sister Tournament
Kasumi wants to put on a competition to decide who the bestest little sister out of the girls is.
Aired 03/03/2023EP 9 - Bestest Little Sister Tournament

2023
NIJIYON ANIMATION
Nijigasaki High School Idol Club is on the verge of being disbanded! It’s up to the club’s 13 members to come together to stop this. Based on the spinoff to Love Live! Nijigasaki High School Idol Club comes a slice of life anime following 13 Nijigasaki girls’ cute lives filled with drama, suspense, and excitement!
(Source: Crunchyroll)