A 2nd year middle school second year and the focus of Chapter 1, Ayumi is one day asked out by Misao Zaitsu. Though she claimed she would accept any offer, she is consistently unsettled by Zaitsu's monstrous appearance. However, she shows she can be somewhat caring as well as crafty. She falls in love with Misao's younger brother Mamoru after he carries her to the infirmary in the manner that she had been dreaming—being carried like a princess by a prince. At the end in the anime, she is trying to decide between the two Zaitsu brothers, whether to choose the one who likes her (Misao) or the one she likes (Mamoru).