In the anime and manga series Tokyo Revengers, the "Black Dragon" tattoo holds great significance as it symbolizes the wearer's loyalty to the gang known as "Tokyo Manji Gang." Members of the gang, including key characters like Mikey and Draken, proudly display this tattoo as a sign of their belonging and commitment to the group. The tattoo is not only a mark of identity but also a representation of the members' shared values and brotherhood within the gang. It serves as a visual reminder of their bond and dedication to each other, as well as their readiness to protect their territory and stand united against rival gangs.