Soul Eater: Elizabeth "Liz" Thompson, Death the Kid, and Patricia "Patty" Thompson

Due to Death the Kid's severe obsessive-compulsive disorder for symmetry, he chose to wield twin demon guns known as the Thompson sisters. Liz and Patty take the form of semi-automatic pistols that compress Kid’s soul wavelength to create energy bullets ranging from destructive blasts to painful, non-wound-inducing shots. Kid refuses to fight using one while the other is missing, but is able to fight without them nonetheless. He can also summon a flying skateboard known as Beelzebub for transportation as well as a weapon.
Beautiful cosplay! Too bad it’s a fairly small image and we can’t see the details too well.