Izumi Hayato's attempt to win the presidency during the student body elections was the start of the story. Despite his hard work, he lost to a captivating girl who promised to free love and gave out condoms to voters. As a result, Izumi was assigned to the vice president position. During a student council meeting, the new president invited herself over to Izumi's home and revealed that their parents had agreed to their marriage when they were just three years old and under the influence. She boldly declared her wish to marry Izumi.