Can a mangá have too many character?

That is a personal person for anyone. For instance, in Fruits Basket, Natsuki Takaya the author said that there were too many characters in the book. there were about 30 characters or more, but it all depends on a presonal opinion.

It all depends onthe type of mangá and your personal preferance.

For me it's never too much, the mais the merryer

well yes but it will confuse the reader if there are to much