In animu, there's no such thing as short hair, so crai moar, Isaac.

http://danbooru.donmai.us/posts/1549849?tags=levi_%28shingeki_no_kyojin%29
http://danbooru.donmai.us/posts/1615636?pool_id=8012
http://danbooru.donmai.us/posts/1621926?tags=short_hair+1boy
http://danbooru.donmai.us/posts/1620976?tags=short_hair+1boy
http://danbooru.donmai.us/posts/535994?tags=kamijou_touma