At Fujisaki Girls Academy, student council president Natsuo Maki is the epitome of grace and perfection, admired by all the young girls who attend the school. One day, Riko Kurahashi walks into the student council room on an errand, only to discover Natsuo practicing her kissing techniques on a pillow, an act that is neither graceful nor elegant. Riko soon discovers that Natsuo desires more romance in her life, leading her to practice romantic situations in secret. Sympathizing with her, Riko agrees to help Natsuo with her love research. Named Love Lab, the project practices the essentials of love and romance, such as bumping into each other accidentally and holding hands. Soon, the entire student council joins in on the fun in the Love Lab too! Through their research and real life encounters, what will they learn about romance? Weaving together funny characters and comedic situations, Love Lab builds a story of friendship and romance, while never missing a beat with the laughter.

Otonokizaka High School is in a crisis! With the number of enrolling students dropping lower and lower every year, the school is set to shut down after its current first years graduate. However, second year Honoka Kousaka refuses to let it go without a fight. Searching for a solution, she comes across popular school idol group A-RISE and sets out to create a school idol group of her own. With the help of her childhood friends Umi Sonoda and Kotori Minami, Honoka forms μ's (pronounced muse) to boost awareness and popularity of her school. Unfortunately, it's all easier said than done. Student council president Eri Ayase vehemently opposes the establishment of a school idol group and will do anything in her power to prevent its creation. Moreover, Honoka and her friends have trouble attracting any additional members. But the Love Live, a competition to determine the best and most beloved school idol groups in Japan, can help them gain the attention they desperately need. With the contest fast approaching, Honoka must act quickly and diligently to try and bring together a school idol group and win the Love Live in order to save Otonokizaka High School.

The Nijigasaki High School Idol Club continues to gain popularity as its reputation grows, even catching the attention of aspiring school idol Zhong Lanzhu. However, when Lanzhu visits the club and interacts with its members, she realizes that their ideals differ from her own. This sparks the beginning of a rivalry between Lanzhu and the club members, as she challenges them to see who can captivate a larger audience at the upcoming School Idol Festival. Thus, the school idol club starts a new chapter in its quest to achieve idol stardom. Being more united than ever before, the girls continue to practice for the festival—wanting to show Lanzhu what it truly means to be a school idol.

Buried within the numerous clubs at Nijigasaki High School lies the school idol club. The club, while lacking popularity, definitely does not lack potential. During their debut performance, they were able to seize a sizable audience, along with the attention of their schoolmates Ayumu Uehara and Yuu Takasaki. Enamored, the duo makes their way to join the club; however, they are disappointed to find out that the club had just been disbanded. Nevertheless, Ayumu does not believe that it should have ended there. Together with Yuu, they begin restoring the school idol club, hoping to recreate the idol performances that dazzled them before. Love Live! Nijigasaki Gakuen School Idol Doukoukai shines its spotlight over the reformed school idol club as they recruit both former members of the club alongside newcomers. Taking the first step towards their dreams, how will these girls achieve idol stardom?