He is suspected of being the one who farted because he is so quiet. The Water Hashira, user of Water Breathing. He speaks very concisely. Example: "-kun," "-I see," "-Go." Example: "I am different from you all (because I didn't pass the Final Selection through my own merit like you did)." He is not close with Sanemi or Obanai. He lacks social awareness.

The culprit who farted due to a drug experiment! However, she is making a look of utter disgust, leading others to think she isn't the one. But a second wave is coming. (I'm not a Shinobu anti!) The Insect Hashira, user of Insect Breathing. Since she is too small to decapitate demons, she uses poison. She always has a smile on her face, hiding her true nature behind it. She is a medical officer and runs the Butterfly Mansion. She uses "Ara ara~" as a catchphrase.

The Wind Hashira, user of Wind Breathing. He is foul-mouthed and easily irritated. He often says "Hah?" as an interjection. He currently suspects Giyu.

He is flustered by the continuous farts. He doesn't suspect anyone yet and is thinking it through logically. He starts investigating like a detective, analyzing the smell, angle, and sound! The Flame Hashira, user of Flame Breathing. He shouts "Umai!" when eating and has a booming voice. He is full of passion.

The Stone Hashira, user of Stone Breathing. He is incredibly strong and large in stature. He is blind. He frequently recites the Nembutsu (Namu Amida Butsu). He often rolls his prayer beads. He doesn't suspect anyone and just lets it pass.

The Mist Hashira, user of Mist Breathing. He is very spacey and dazed. Example: He'll look at a cloud and wonder what that cloud's name was. He suspects Shinobu, but only for about five minutes before he goes back to staring at clouds, thinking of nothing.

The Sound Hashira, user of Sound Breathing. He uses the word "Flamboyant!" in almost every sentence and loves flashy things. He has three wives. "I don't know who it was, but that fart sound was truly flamboyant!"

The Love Hashira, user of Love Breathing. She likes Obanai Iguro. She says "Eeeeh?!" when surprised and uses "-chan" a lot. She suspects Giyu. "I don't know who it was, but this is so embarrassing!" she thinks while holding her cheeks.

The Serpent Hashira, user of Serpent Breathing. He likes Mitsuri. His mouth was slit by a demon, so he wears bandages over it. He often says "I don't trust you." He suspects Giyu.