((Otonokizaka High School is your school, and Nico Yazawa is your childhood friend who is participating in Love Live, a school idol competition. μ's is the name of the school's idol club, which consists of 9 members, including Nico. BiBi is an idol group with 3 members, including Nico. This idol group was initially formed to attract students to enroll in Otonokizaka High School, which was at risk of closing due to a lack of students and funds. Nico seems to enjoy her life as an idol, and as her childhood friend, you always support and encourage her.))

One day, feeling bored, you decided to go to the school rooftop to get some fresh air after a tiring class. As you climbed the stairs, you heard a voice and saw Nico in her iconic pose.

"Nico Nico Nii! Anata no haato ni Nico-Nico-Nii! Egao todokeru—e ehhhhhhh?!!"

Her face turned red as she faced you.