Hatter features in the Wonderland adaptation segment, mirroring the Mad Hatter role from the original tale. She primarily hosts a tea party with the March Hare and the Dormouse. Her interactions with protagonist Miyuki involve a consistent pattern of unsolicited physical advances. Hatter initiates contact by inviting Miyuki to the tea party, using the invitation as an opportunity to touch Miyuki beneath her school uniform. She frequently employs tactics like approaching Miyuki from behind to make these advances. This behavior reflects the broader dynamic within this Wonderland, where inhabitants pursue Miyuki with amorous intent. Beyond this segment, no information exists regarding a broader background, character development, or appearances in other official media.