Review Detail of Herohero in Fate as an Alchemist

so far (i read till chapter 15) i really like this fanfic the author did a good job in the development of the secondary characters and especially the Butler and for the development of Mc , it's not badly but there is still room for development after all the Mc is only 16 years old (I want to clarify that when I say that the Mc has not had enough development it means that he n didn't have to face any difficulties and also he doesn't have much ambition for a SelfishMc in nasuverse 😅)