Let's help each other and aim to be perfect ordinary citizens. Kotobakun, who had bitter experiences through reasoning activities he once called "wisdom work," was determined to aim for a pure and modest life as an ordinary citizen.
He secretly formed a "mutually beneficial relationship" with his classmate Kosanauchi, who shared the same goal, intending to make their high school debut as ordinary citizens and lead peaceful days. However, inexplicable incidents and disasters keep occurring in their school lives one after another. Will Kotobakun and Kosanauchi be able to achieve their peaceful days as ordinary citizens?