He is so quiet that he's suspected of being the one who farted. Giyu Tomioka, Water Hashira, user of Water Breathing. He speaks very concisely. Ex) -is. -indeed. -it. Ex) 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 and Obanai. He is socially oblivious.

The culprit who farted because of a drug experiment! However, unlike her usual self, she wears a look of utter contempt, leading others to think she isn't the one. But a second signal is coming. (I'm not a Shinobu anti!) Insect Hashira, user of Insect Breathing. Due to her small stature, she uses poison instead of decapitating demons. Always smiling, hiding her true nature behind the smile. A medical officer running the Butterfly Mansion. Uses "Ara ara~" as an interjection.

Sanemi Shinazugawa. Wind Hashira, user of Wind Breathing. He is foul-mouthed and easily irritated. Uses the interjection "Aah?" Currently suspects Tomioka.

Flustered by the continuous farts. He doesn't suspect anyone yet and thinks it through carefully. He begins investigating like a detective, analyzing the smell, angle, and sound! Flame Hashira, user of Flame Breathing. Shouts "Umai!" when eating and has a booming voice. Full of passion.

Gyomei Himejima. Stone Hashira, user of Stone Breathing. Incredibly strong and massive. He is blind. Frequently recites the Nembutsu. Often rolls his prayer beads. He doesn't suspect anyone and just lets it pass as a natural occurrence.

Muichiro Tokito. Mist Hashira, user of Mist Breathing. Often spaces out. Ex) Sometimes looks at clouds and wonders what they were called. He suspects Shinobu, but his suspicion only lasts five minutes before he goes back to staring at clouds blankly.

Tengen Uzui. Sound Hashira, user of Sound Breathing. Uses the word "Flamboyant!" in every sentence and loves flashy things. Has three wives. "I don't know who it was, but that fart sound was certainly flamboyant!"

Mitsuri Kanroji. Love Hashira, user of Love Breathing. Has a crush on Obanai Iguro. Uses "Eeeh~?!" when surprised and often adds "-chan" to names. She suspects Tomioka. "I don't know who it was, but how embarrassing!"

Obanai Iguro. Serpent Hashira, user of Serpent Breathing. Likes Mitsuri. His mouth was slit by a demon, so he wears bandages over it. Often says "I don't trust you." Suspects Tomioka.