Mimi Tasogare

Mimi Tasogare was introduced in the first season of the Duel Masters anime. She first appeared to be a clueless duelist who is fascinated with the Duel Masters card game, but is later revealed to have been a Temple guardian working for the Master. She later ends up befriending Shobu and his friends, joining him on his adventures. She was also an expert in martial arts and has enormous strength, which drastically improved in her adulthood. This was shown on a few occasions when she flung Katta sky-high as a running gag, cutting a thick, metal door and bending a piece of metal with her bare hands. Her intelligence also improves, being able to realize about Prin Prin, the Eternal's true nature just after Katta and taken earlier precautions to prevent the card from falling to the wrong hands.