In a certain world bubble, the conflict between the armed dolls and the dead soldiers is never ending. With the conflict between the two escalating, the stability of the world bubble is gradually decreasing. To save the world from collapse, human beings set up a special organization to manage and control the dolls. In order to cover up the dark truth, human specially gave the organization a very cute name: "Renou Xueyuan" - "Doll School". —Ahaha, just kidding! How could it possibly be anything like that? (Source: Official Weibo)

At Maigahara Music College Affiliate School Maigahara Senior High (abbreviated as MaiMai) that gathers the most promising musical talents, there's a rumor circulating among students. "If you give an amazing performance at the school festival, you get special extra credit (or so they say)." Serina's grades are not very good, so she immediately believes the rumor and decides to form a band.

After their triumphant victory over Shiratorizawa Academy, the Karasuno High School volleyball team has earned their long-awaited ticket to nationals. As preparations begin, genius setter Tobio Kageyama is invited to the All-Japan Youth Training Camp to play alongside fellow nationally recognized players. Meanwhile, Kei Tsukishima is invited to a special rookie training camp for first-years within the Miyagi Prefecture. Not receiving any invitations himself, the enthusiastic Shouyou Hinata feels left behind. However, Hinata does not back down. Transforming his frustration into self-motivation, he boldly decides to sneak himself into the same rookie training camp as Tsukishima. Even though Hinata only lands himself a job as the ball boy, he comes to see this as a golden opportunity. He begins to not only reflect on his skills as a volleyball player but also analyze the plethora of information available on the court and how he can apply it. As the much-anticipated national tournament approaches, the members of Karasuno's volleyball team attempt to overcome their weak points and refine their skills, all while aiming for the top! [Written by MAL Rewrite]

A direct continuation of Shikabane Hime: Aka, taking place six months after Tagami Keisei's death at the hands of the Shichisei (Seven Stars), a group of elite Shikabane who act on more than just regrets. As per Keisei's dying wish, Kagami Ouri formed a temporary contract with Makina to save her from degenerating into a Shikabane. Since then, Ouri's been training to become a proper monk so that he can remain contracted to Makina and help her fight against the Shichisei -- the ones who originally killed Makina, the entire Hoshimura family, and now Keisei. However, the traitorous monk Shishidou Akasha has sided with the Shichisei in an attempt to destroy all Shikabane Hime and the entire monk organization that uses them -- Kougon Sect.