In the dark and overcast Instinct Town, in the mysterious and terrifying Instinct Academy, the high-ranking student council president Gui Longyuan Gaoyue (voiced by Yuzuki Suzuka) covers the sky with one hand. She commands the students in the school through "ultra-uniforms". The ultra-uniforms are graded by the number of stars worn. The higher the level, the stronger the combat power. On this day, a girl carrying a single-piece katana scissors appeared at the gate of the Instinct Academy. Her name is Matoi Ryuko (voiced by Koshimizu Ami), and she came to this dangerous place to investigate the real murderer of her father. Who knew that she had just arrived and was blocked by the four kings of the student council, including Yugo County Ko (voiced by Inada Toru) and Yuantoushan Tsuyoshi (voiced by Hiyama Osamu). At the critical moment, Matoi Ryuko accidentally obtained the black divine clothes made by his father, which greatly increased his combat power. A series of fierce battles unfolded at the Instinct Academy...