Miggy, also known as Migi, is a guinea pig supporting character in the OTMGirls idol group during the series' third season. Her name derives from the Japanese word "右" (migi), meaning "right," reflecting her consistent position on the group's right side during performances.

She sports light beech and white fur, with large black pupils featuring a single curled eyelash on each eye and distinct rosy pink cheeks. Her appearance includes twin ponytails secured by white and pink plaid bows, and she wears a matching schoolgirl outfit: a white top with a central plaid bow, skirt, long white socks, and shoes.

Cheerful and pleasant, Miggy shares these traits with her counterpart Hidarin. The two maintain a close partnership, rarely appearing apart within the group dynamic. Miggy habitually consumes candies before taking the stage, a noted part of her pre-performance routine.

As an ensemble member of OTMGirls, Miggy contributes to the underground idol unit's identity. The group struggles for recognition before Retsuko joins as their accountant and eventual performer, anchoring broader narratives about the entertainment industry's challenges.