A new year signifies a new beginning, and that seems to be the case for Kitauji High School’s concert band. Following the graduation of the third-year seniors comes the entrance of the first-year juniors. The band members put in their utmost effort in practicing for their goal—to enter nationals. The now second-year Kumiko Oumae, along with her friends, is met with the new and quirky batch of first-years, resulting in friction and conflict between the band members. However, as time passes, their inner feelings slowly unravel, but not every conflict is as easy to solve as the other. The trust and bonds between the band members will be challenged as they push forward for their regionals. [Written by MAL Rewrite]

Kai, a young middle schooler, lives in Hinashi Town, a lonely fishing village, with his father and his grandfather, a sun-umbrella maker. He used to live in Tokyo, but after his parents divorced he moved back to his parent's home town. Kai has trouble telling his parents the complicated feelings he has for them, and he's lonely and pessimistic about his school life. One of his joys is uploading songs he writes to the internet.

One day, his classmates Kunio and Yuuho invite him to join their band, "SEIRÈN." As he reluctantly follows them to Merfolk Island, their practice spot, they meet Lu, the mermaid girl. Lu sings merrily and dances innocently. As Kai begins to spend time with her, he starts to be able to say what it is that he's really thinking.

But since ancient times, the people of Hinashi Town have thought that mermaids brought disaster. Something happens that puts a huge rift between Lu and the townspeople. And then, the town is in danger. Will Kai's cry for the heart be able to save the town?

(Source: Fuji Creative Corporation)

Following the closure of Uranohoshi Girls' High School, the third-year students—Dia Kurosawa, Kanan Matsuura, and Mari Ohara—have just graduated, leaving Aqours with solely the first and second-years. While searching for a new place the remaining members can use to practice, they decide to visit the new school they will soon enroll in. However, to their surprise, the building seems to be abandoned! It turns out that due to the school board's worries regarding how the freshly transferred Uranohoshi students may burden the clubs, they were instead sent to a branch school. This sets Aqours on a new goal—to prove that Uranohoshi students are serious in their clubs as well. Meanwhile, another problem arises: the third-years have unexpectedly gone missing during their graduation trip! Love Live! Sunshine!! The School Idol Movie: Over the Rainbow revolves around the remaining Aqours members as they venture out to search for their missing seniors and, at the same time, try to figure out a way to change the new school's mind. [Written by MAL Rewrite]

Liz's days of solitude come to an end when she meets a blue bird in the form of a young girl. Although their relationship blossoms, Liz must make a heart-wrenching decision in order to truly realize her love for Blue Bird. High school seniors and close friends Mizore Yoroizuka and Nozomi Kasaki are tasked to play the lead instruments in the third movement of Liz and the Blue Bird, a concert band piece inspired by this fairy tale. The introverted and reserved Mizore plays the oboe, representing the kind and gentle Liz. Meanwhile, the radiant and popular Nozomi plays the flute, portraying the cheerful and energetic Blue Bird. However, as they rehearse, the distance between Mizore and Nozomi seems to grow. Their disjointed duet disappoints the band, and with graduation on the horizon, uncertainty about the future spurs complicated emotions. With little time to improve as their performance draws near, they desperately attempt to connect with their respective characters. But when Mizore and Nozomi consider the story from a brand-new perspective, will the girls find the strength to face harsh realities? A spin-off film adaptation of the Hibike Euphonium! series, Liz to Aoi Tori dances between the parallels of a charming fairy tale, a moving musical piece, and a delicate high school friendship. [Written by MAL Rewrite]