Responses
Yes they are. Further explanations ahead but with possible spoilers:
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AnLe is already an adult cause he's no longer living at the orphanage.
Zhao Cai is a god who descended and is probably hundreds or thousands of years old. Plus in one of the chapters I remember him saying that he was given permission to descend to earth cause he was of the proper age. (=・ω・=)
im sorry i gotta ask pre-read (bl be out of pocket sometimes), like are they both adults?