Descendants Through Twisted Wonderland

So this is where Mal suddenly found her mother's spell book that has a spell which sent herself, Ben, and her friends to an alternative universe where their parents are praised and are founders of seven dorms at Night Raven College. How will the residents there react where they meet the direct descendants of the Big 7 and their 'enemies'.
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I'm just going to call the Mc, Yuu, since that's their name in most fanart and stuff. This is also after Descendants 3.