* MagnificentBastard: The Demon King. Granted, it's probably in the job description. [[spoiler: The climax of Heaven to Wudang drives the point home.]]
* MarySue: Emma, a young white Australian nanny who falls in love with a Chinese god and quickly develops magical powers along the way. Some of the Goodreads reviews believe that Emma is an AuthorAvatar for Kylie Chan herself as Chan is actually a white woman who married a Chinese man.
* {{Squick}}: Was it really necessary to describe turtle sexuality in ''Demon Child''?
* WhatDoYouMeanItsNotForKids: The author mentioned in the foreword that this series was getting shelved in the YA section by some retailers. It's roughly as kid-friendly as ''Literature/ASongOfIceAndFire''.