Midori Kasugano

Midori Kasugano is a sixteen-year-old girl whose three-year crush on Seiji takes a strange turn through a magical accident. After an intense period of wishing to be closer to him, she undergoes a physical transformation into a miniature version of herself. She is now literally attached to the right hand of her beloved. This sudden change forces Seiji to deal with his tiny, devoted companion permanently fixed to his fist.