It was the start of the summer vacation for second-year student Ryouichi. There were no dramatic events in his casual school life. That was until one day, his homeroom teacher announced that the festival commemorating the founding of the school will be Halloween-themed, and that there was a new transfer student to the class. A meeting with a new classmate. The first trial at the festival. The obstacle-free days begin to pass by. What kind of future awaits him?