It's the end of June, and summer seems to have settled in for good. Tomohiro Izumi, who sees himself and is seen by others as an introvert, is spending another calm day in his quiet corner of the classroom—so he believes. "Congratulations! You've been selected as our next student council president!" The student council president lottery, organized on a sudden impulse by the academy, has randomly chosen Tomohiro thanks to his absurd luck. Now the spotlight is suddenly on him, and as a result, rumors about him start spreading. With no way to escape, Tomohiro turns to his advisor to begin assembling allies he can trust. Yet none of the candidates his advisor suggests—whether his classmate Kano, his underclassman Asumi, or even his younger sister Hiyori—are actually coming to campus. Amid all this confusion, even the former president, someone no one could ever reach, Shio, appears unexpectedly... Is it fate, or is it already decided? The unprecedented and unheard-of struggles of the "Random Lottery Student Council President" are about to begin!