lectura Special A in manga form will give tu a better understanding than watching the anime adaption alone. tu will get entertained por almost everything in the manga, like its art that's well drawn compared to the anime (although its art is still quite good). tu will also see deep character development and más characters if tu continue lectura until the very last book.
So please do continue on reading! I'm sure you'll enjoy más of it :)
(Credit for Otaku bóveda, bóveda de magazine Vol. 2 No. 2 for this answer)