When Riilu requested the mystical time controlling spirit to relive his childhood. he got more than he bargained for. After a mere few seconds, his tall body had rapidly shrunken down into nothing but a tiny hatchlings body. The spirit was nice enough to give him the only sort of clothes he'll be needing for the next 2 years.
Now he get to experience childhood anew, but this is going to be difficult to explain.
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Angellothefox
I love the diaper the spirit put him in