メリッサ

Ruka's roommate, who dwells secretly in his coat pocket after he saved her from wicked hands.

Pixies like her are rare, and popular as household pets, which makes them targets for poachers.

She's a busybody and won't keep out of Ruka's business, but her bright cheer easily compensates. However, when Ruka gets up to things she'd rather not see, she's considerate enough to go to sleep or simply pretend not to notice.