Well I want to find some mods to bring me back to oblivion for a little while. Hopefully in the process some of you guys can get something out of this. I have looked at the Uchiha mod that gives you the sharingan, Ive also downloaded a few weapons like Zangetsu form Bleach. Even some of the terrible ones like Naruto's Rasengan. I was looking for some fullmetal alchemist mods but all I found was a coat. It would be fun to transmute.
As far as roleplaying all Ive found for something like that is unholy darkness, and the curse of hircine mod (not all that great). Someone help resurrect Oblivion for me.

If you would like more Anime looking NPCs...
http://www.gamefront.com/files/17029523/XEOSP_1.0.7z FTW!!!!
http://ryou44.blog111.fc2.com/blog-entry-53.html

Other than that... Try doing an advanced search on TESNexus and type Anime in the description field or a popular anime show you are trying to find content for. Beyond that.... You may want to dig into what mods exist in the Japanese and Korean Oblivion mod sites.

I almost want to say http://www.moddb.com/mods/integration-the-stranded-light after all those complaining accusations saying the NPCs had "anime eyes"

http://www.tesnexus.com/downloads/search.php?name=&scid=20&author=&mname=&desc=anime&size1=&size2=&downloads1=&downloads2=&udate1_day=0&udate1_month=0&udate1_year=0&udate2_day=0&udate2_month=0&udate2_year=0&ldate1_day=0&ldate1_month=0&ldate1_year=0&ldate2_day=0&ldate2_month=0&ldate2_year=0&endorsemants=&images=&readme=&advltonly=&opensource=&page=1&orderby=name&order=ASC

Also if you mean roleplay in a general sense, as in mods that allow you to roleplay, and make your character more of an idividual and less of some random dungeon crawler who saves the world, well Integration would be good because it has a number of "gray" quests/storylines, multiple ways to go about things, and choices and consequences.

Also there's always the roleplay list http://www.gamesas.com/?showtopic=931523&hl