During one lunch break, Tomoki dozed off in a corner of the school courtyard and woke up on the lap of a beautiful girl he hadn’t seen before. The next day, the girl Naori joined his class to retake the second year of school which she missed due to illness. Not soon thereafter, his friend Minagi and kouhai Hazuki joined the ‘ruling party’ that Naori revived to keep the over-earnest student council led by her best friend Erika in check. He finds himself unwillingly caught in the middle of all of this.