Otome functions as the fairy companion to the human Naomi, wielding a flute as her magical instrument. She harbors romantic feelings for Yatch and routinely attempts to win his affection through offerings such as handmade chocolates. When experiencing excitement or strong emotions, Otome undergoes a physical change marked by sprouting a mustache and displaying effeminate gestures. Biologically male, she consistently maintains a feminine appearance and demeanor.

In one recorded event, Otome crafted enchanted chocolates for Yatch. After Yatch rejected them and inadvertently ruined Azumi’s cake, Azumi redirected the chocolates to Sazo. The magic-infused treats triggered an unintended, intense romantic obsession in Sazo toward Azumi. This incident underscores the ripple effects of Otome’s magical interventions on fairy and human relationships. Despite Yatch’s repeated rejections, Otome’s unwavering romantic pursuits persistently fuel comedic misunderstandings within their social group.