TV-Series
Description
Mimi Atachi is a 37-year-old female executive among the elite Hexagon Tops at Goha Corporation. Her petite, childlike appearance, often mistaken for an elementary school student, features shoulder-length carrot-colored hair, large violet eyes, and a preference for youthful fashion: pink skirts, white socks with ribbons, and red Mary Jane shoes. This physical trait initially caused adult difficulties but later proved an asset for corporate espionage. She has a son, Yoshio Atachi, whose involvement in Rush Dueling sometimes creates familial conflict.

Mimi leveraged her youthful look to ascend Goha's ranks. Identifying Rush Dueling as a concern during a top brass meeting, she volunteered to infiltrate Goha 7th Elementary as a transfer student to retrieve Yuga Ohdo's notebook containing Rush Duel secrets. Undercover, she tried befriending Yuga and his friends, offering cash gifts that aroused suspicion. Caught attempting to steal the notebook, she dueled Yuga, lost, and received the notebook willingly from him, prompting her to reconsider her mission due to his apparent lack of malice.

Personality-wise, she is energetic, cheerful, and eccentric, frequently using the childish pronoun "atachi." She demonstrates sympathy and care, especially towards those close to her like Yuga and her son. Her primary motivation is proving herself professionally despite underestimation due to her appearance, balanced by loyalty to Goha Corporation, though she occasionally voices frustration with colleagues' incompetence.

In duels, she first used a Bubble Era Deck with Light and Aqua-type monsters, recording consistent losses against opponents including Yuga Ohdo, Yoshio Atachi, Roa Kassidy, Swirly, and Romin Kassidy. She later switched to a Prison-themed deck and subsequently adopted a cooking-themed deck.

Following her initial mission, she continued supporting Goha Corporation's efforts against Rush Dueling. She later hosted the "President Drone," a helmet controlling the CEO position, while retaining some autonomy. After the Goha Siblings were revealed as the corporation's true leaders, she was demoted but ultimately appointed as their Vice President, reflecting her persistence within the corporate hierarchy.