A new school year has begun at Ayanagi Academy for Yuuta Hoshitani and the members of Team Ootori. As the school's annual graduation performance titled Shadow and Lights quickly approaches, the second-years in the Musical Department must participate in the production as part of their curriculum. Out of the 25 students in the division, five of them will receive a training role and actively participate as actors in the program alongside the graduating class. Attaining one of these coveted spots will not only increase a student's academic standing within the department, but it will also put them in the running for a position on the elite Kao Council. While every student in the department strives to obtain one of the five training roles, Team Yuzuriha's Riku Ageha is practically a front-runner for the role of Alexis' Shadow. Having idolized an Ayanagi alumnus' performance of Alexis, Ageha has spent a majority of his life perfecting the portrayal in hopes of being selected for the show. In contrast, Hoshitani's lack of experience in show business puts him at a great disadvantage for any of the roles in the production. With specialized training from the Ancients—former Kao Council members and Ayanagi alumni—the second-years give it their all as they aim for the stars and beyond.

It began in 1945, at the end of the Pacific War. Alien invaders filled the earth's Skies, and mankind was forced to confront an unprecedented threat. For the first time in human history, people of all cultures came together under one banner. This war has now been raging for over fifty years. Countless lives have been lost, and the Japanese military is now forced to rely on young people such as Atsushi Hayami and his high school class, also known as Unit 5121. This new generation fearlessly struggles on with the aid of the HWT humanoid combat machines and the devastating PBE bomb. (Source: Media Blasters)

Despite recently turning 17, the otherwise ordinary Yucie still has the body of a child. Having stopped growing past the age of 10, Yucie yearns to fully mature into an adult body. One day, she is chosen as a candidate for the title of Platinum Princess, given once in a thousand years to whoever is worthy of the Eternal Tiara—a mysterious crown said to grant any wish. She's not alone either, as four other candidates also compete to have their own wishes granted by the crown. As a result, Yucie enrolls at the nearby Princess Academy in order to grow her heart and work towards becoming qualified for the Eternal Tiara. With her family, rivals, and even the principal of the academy there to lend a hand, will Yucie's much-desired wish finally come true?

In sixth grade, childhood friends Yukiya Asagi and Miku Sakura created a game with the objective to embarrass the other person by taking turns saying I love you. Four years later, even as they are entering high school, the two are still trying to one-up the other and claim victory. However, as tender feelings begin to bloom in their hearts, the simple phrase has taken on new meaning beyond the rules of their game. With the passing of each day, the urge to become more than childhood friends grows—but both Yukiya and Miku resist making the first move, hesitant about what is in store once the game finally ends.