Spin-off of <i>Mayo Chiki!</i> with Hinata Mayoi as the main character. While using the girl's washroom Mayoi accidentally discovers that the popular and handsome butler Konoe Subaru is in fact a girl. Now that she knows about Subaru's secret, she must work together with Subaru and her sadistic mistress, Suzutsuki Kanade, to protect Subaru's secret from being discovered. (Source: MU)