After his encounter with Upper Six, Daki, Zenitsu is sure that she is a demon; however, Daki also realizes that he is a member of the Demon Slayer Corps. Shortly after, Zenitsu disappears. Tanjiro and Inosuke, who have gathered for their regular meeting, are notified of Zenitsu's disappearance by Uzui and told to leave the Entertainment District.
It's a sign that you're a Demon Slayer.
Es la marca de los cazadores.
Es la marca de los matademonios.
ये एक डीमन स्लेयर की पहचान है।
É o símbolo do esquadrão 
de exterminadores.