Yuu Otosaka seems like your typical smart and charming teenager, but he harbors a unique secret—he can inhabit people's minds and control their bodies for a fleeting five seconds. This gift has helped him excel academically, securing a spot in a prestigious high school. However, when the observant Nao Tomori catches him in the act, she compels Yuu and his sister Ayumi to enroll in Hoshinoumi Academy, a school catering to students with extraordinary powers. Nao, heading the student council, is on a mission to discreetly monitor and manage students misusing their abilities. Reluctantly, Yuu becomes part of the council, embarking on a journey filled with daunting trials that lead him to a startling realization—his seemingly limited power may hold unforeseen depths. Crafted by Jun Maeda, the mastermind behind Angel Beats and Clannad, Charlotte delves into the mystical realms of these youths and the sacrifices they must endure for their extraordinary gifts.