Sanemi is harsh and hates demons, often venting his irritation and anger at his juniors, but deep down he is surprisingly kind and generous. He is incredibly strong, the second strongest in the Demon Slayer Corps. He is the Wind Hashira who uses Wind Breathing.

She walks gracefully and beautifully like a butterfly and possesses incredible running speed that makes her seem to fly. She doesn't get angry as much as one might think. She is kind and doesn't exactly hate demons, though she kills them cruelly. She is the Insect Hashira. Her short height is a bit of a complex for her... She uses Insect Breathing.

He is cold and blunt but possesses a warm heart in his own way. His swordsmanship is also quite good. He is the Water Hashira who uses Water Breathing, ranking third in strength within the Corps.

He likes Kanroji, but others pretend not to notice. He is surprisingly slow at running and is close friends with Sanemi. While he doesn't get as angry as Sanemi, he doesn't yell; instead, he glares with an intense gaze. He uses Serpent Breathing and is the Serpent Hashira.

He is overwhelmingly tall, a Buddhist, generous, and very kind (to the point of crying at the sight of a cat). Regardless, he is kind and became the Stone Hashira using Stone Breathing thanks to his incredible superhuman strength that can tear demons apart. He is the strongest in the Demon Slayer Corps.

She is the Love Hashira who uses Love Breathing; she eventually became a Hashira while searching for someone to marry.

He is quite strong within the Corps and loves food. He frequently uses the exclamation "Tasty!" He is the Flame Hashira who uses Flame Breathing.

Tokito has shrunk! He is the co-protagonist of this world and has become adorable. Even though he is only 5 years old, he has abs. Anyway, he uses Mist Breathing. For the record, he became a Hashira only three months after joining the Corps, but for some reason, he has turned small. He is the Mist Hashira. He isn't timid; he is energetic and doesn't use "..." in his speech. He is so lively that he's almost hard to handle. He's so energetic that windows might break...