Listen to >>10675334
Suppress the power-level to people like that. Everyone has shit hidden in the closet that might put them under scrutiny from the major social groups you come into contact with on an everyday basis. You can't bring all that out if you are looking for a relationship or dating a girl of sorts. For us /a/non its normally anime and help you god if you waste money on fucking figurines and anime posters/manga everywhere in your room. Other people have weird sexual fetishes/hidden porn stacks/ or posters of bald muscular men over age 40. Put that stuff away if you seriously want to date this person.
If you do get to clinch a girl long-term. THEN they'll be more willing to accept you for all you are. YOU have to explain it the right way though.
Bad way of Explaining yourself:
Show her a youtube video of the lucky star dance and show her that you know all the moves and lyrics.
Good Way (This comes from personal anecdotal evidence): When she is going through your Itunes and sees 40% is japanese stuff. Simply explain that you like music no matter what language it is in and play a regular sounding j-rock song and maybe discuss american influences on that band or some shit. She WON'T know that there is no artists called Bleach and is really an anime with different songs. Stay away from Kawaii sounding shit for the time being. You can easily put pressure on her if she doesn't like it saying she does not have a world view on things or some shit if she makes a bad comment.
As long as you take it slow and explain yourself properly in small steps... this girl should accept you for who you are. She might never be into anime and discuss with your Nietzsche influences on TTGL but won't mind you playing certain OST's while having sex.
If she STILL doesn't accept who you are after all that.