when he takes off the feng long tie, he transforms into gui long and becomes unable to control his actions. but thanks to xiu, he learns a spell to help him control gui long. eventually he becomes strong enough to suppress him without using the feng long tie. gui long's main weapon is the guitar pick "gui long pi ke" (鬼龍鎞克 / "gui long guitar pick") as his weapon, into which the feng long ka is embedded. his notable, yet lowest ability is to impregnate people through a simple kiss (this implies boys as well). those who fall victim will become pregnant, smile crazily and be flirtatious for three days before the effect wears off.