I second Kraco. If you want new characters and deeper story you are not likely to find it in a show like Bleach. Anime/Manga this popular owe a lot of that popularity to being easily accessible and simple so massive numbers of similar people (moder youth for instance) will be more likely to enjoy them. Why does Hitsugaya show up all the time I've asked myself many times? Answer: Because he was voted most popular non-main character in Japan a few times. If you want depth talk to Budweiniken aka Munsu, he can probably point you in the direction of several anime that are deeper and more story driven than Bleach. No one's too old for anime, but it's quite possible you're too old for Shounen.