第1話: 神楽なこ浦香は鋼鉄天使くるみマークIIを収めた洞窟の像を発見する

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Nakahito's great granddaughter Nako Kagura is a girl skilled in playing the cello. One day, she and her friend Uruka go down a cavern, which has a statue containing Steel Angel Kurumi Mark II! (Source: Wikipedia)