完美小姐进化论Ranmaru receives a phone call from his father, who tells him that he is engaged to be married. Determined to break the engagement, the four bishōnen plot to make Ranmaru someone unworthy to be a husband. However, to no success, Ranmaru's fiancée, Tamao Kikunoi begins to take a liking to Ranmaru's imitative personalities. However, she begins to realize that Ranmaru has no interest in her. Feeling guilty, Ranmaru visits Tamao's school grounds to apologize, but he is raided by other girls Ranmaru has dated. It is later revealed that Tamao truly wants to marry him.