milf? 😰
I read the Spanish version of chapter 2 earlier, and if they translated the age right (and I don't see why they would get it wrong), the cursed Alejandro is 13 years old. He probably looks smaller and skinny because he's been consumed by the curse, malnourished, constantly sick and neglected for several years. (though, to be begin with, 13 yo in manga/anime/webtoons are often drawn as little kids in many series)
In this chapter, the heroine woke up in the body of a young maid who is ~16 years old based on her appearance I guess? 🤔 As such there is maybe a 3 years difference between them it seems at most?
I personally do not consider this a significant difference considering there will very probably not be any romance between those two until Alejandro is much older and got over all the tragedy and pain inflicted to him by the curse and his family...