>>1684591I bet she just hasn't figured out the con thing. Be like, 'yo sis, lets go check out this animu con in Downtown Local City.' She might be all WHOAH I CAN WEAR COSTUMES FOR NO REAL REASON?
(although if all parties involved are older, I'd go comic/scifi/general nerd con over anime specific, cause the anime cons tend to have a younger age range, and when everyone running around is like 16 and you're twentysomething, it's not fun.)