Zhaoyue, the laziest deity in heaven, cut off a marriage bond without authorization three hundred years ago. When the Jade Emperor held her accountable, she still made up excuses, so the Jade Emperor stripped her of all her divine power and banished her to the mortal world as a little toddler, A Tuan. She must investigate nine fake marriages within a hundred days and let the parties involved choose for themselves. Without magical powers, she can still see the threads of fate, so she can only rely on solving cases and returning the truth to mortals.