Mikansei No.1 (2005)

Neo is a girl of the 23rd century. She is treated like a delinquent at school since she is always breaking the rules. One day, she accidently time-travels back to the 21st century. She meets a boy named Saya and the two are forced to form a band together in order to make their dreams of becoming singing sensations. They must put on one amazing concert before they can get signed to an agency. They have a rough road ahead of them.

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