Also known as: ミラクルダイエッターMIYUKI
Yukimi, a chubby junior high student, discovers a magical dumbbell that can transform her into Miyuki, a beautiful and slender young woman in a revealing costume. But she must do battle with an evil three-star chef who tempts young girls with calorie-rich treats and dubious weight loss products, and keep her identity secret from her family and schoolmates. A spoof of 'magical girl' series like Cardcaptor Sakura and Sailor Moon.
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