The world is comprised of many district, Among them. To Distinguish between District has a simbol that it's Citizen Tattoo onto their bodies.Those who are not official Citizen of any district and therefore have no tattoos are known As Grays. Formicarium has two official tattoos. If the ant or the triangle is not included in the tattoos. It is considered illegitimate. The *Rose Tattoo.*All ppl are searching for the rose tattoo but they didn't found any.