Honestly, it would
be cheaper to get a character-specific wig rather than styling it yourself - that cosplayholic one is one of the best predone Aki(za) wigs I've seen.
But, if you really want to style it yourself, here's how I did mine
: I got a short, flippy wig and prewefted extensions, then followed a tutorial similar to Malindachan's hairline tutorial
. The rest of the work was just a tag-team of heavy duty hairspray and a hairdryer on low heat (VERY LOW. The materials I used aren't heat resistant, and my newer hairdryer was on the cool setting and still melted the bangs a little when I tried to fix it up.)
I used a New Look Hannah L in burgundy and nearly two packages of burgundy Cosworx wefts (which don't exist anymore, unfortunately). Those plus
the work would set you back quite a bit more than the wig linked a few posts above me - mine took about a week without doing anything else on the costume during that time frame. Even without counting the labor, glue, or hairspray, just the wig and extensions set me back about $60 excluding
Good luck! ♥ (If you have any other questions, feel free to ask!)