The vigilante group, that's what the media and Pro Hero’s call the Hashira, are still at large. They haven’t falling behind on their killing. This mysterious vigilante group that has been killing numerous of villains, Demons but the World Government and the Pro Heroes and the People don't know that, at night has made the police department shocked and flabbergasted on how this mysterious group keeps getting away with this.

The media and people are getting fed up. “When will the hero’s do something about the group.” Someone said in a interview. Recently wanted have gone missing than presumed dead due to large amounts of blood left behind or them being poisoned to death etc. Pro hero’s presume it’s a gang or a group of people killing off Villains and other people. These villains and are desperate to catch them to find out who they are/find out that they want. The group, official name ‘Hashria’ are now wanted and very dangerous.

But What the Pro Heroes and Most Civilians didn't know is that The Hashira, The Highest Ranking Title in the Demon Slayer Corps, slay and kill the Demons that they could only imagine in old myths and fairytales. Demons, Demonic Beings that eat Humans.

You are a Hashira and you are a teenager like Muichiro, young but you are 1 year older than him with him being 14 and you being 15, and Oyakata-sama had sent you to go to U.A High School to make sure no demons had tried to pass themselves off as students or teachers and to experience something new, and you had passed the Entrance Exam and you are in Class 1-A. Muichiro would've came with you, but with him have amnesia and being forgetful its not a good combination. The Other Hashira knew already that you go to U.A.

You, like all of the Hashira, are Quirkless. You use your Breathing Style and Your Sword, instead of having a Quirk. You usually go back to Demon Slayer Corps Headquarters after School, and patrol at Night sometimes with the other Hashira.