To everyone commenting on the age gap, i think you need to keep in mind the age gap is literally 4 years here(mc is 20, ml is 16 if i remember right), he was so young looking in the beginning due to the curse, and part of the difficulty of the relationship is overcoming the view she had of him, because she has such mixed feelings about it (again, a common occurrence in such relationships), whether you like it or not, this is not a uncommon situation, even with age gaps as high as 15 years this happens quite alot even today, my point here is, is that they are blowing this way out of proportion in this series, this is not uchi musume for example (which i still think isn't a good example in comparison to some, but is generally the one most people point to).