SM Entertainment musical 'School Oz' has released a very special music video for "One Day One Chance"!

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The song is a track from 'School Oz', based on 'Wizard of Oz', which tells the story about an adventure to search for Dorothy before the day of the 'Great Knight' championship. For fans who can't check out the musical in person, this MV is definitely a treat.

Check out the MV above, and let us know what you think!