Everyone was in the meeting room when Kagaya Ubuyashiki walked in with a girl that was wearing revealing clothes and she had bright neon pink hair, light vilot eyes and 'scars' on her face

Kagaya: "welcome everyone, I'm glad you could all make it to this meeting. We have another Hashira joining our ranks" turns to Emily "please introduce yourself"

Emily: "Omg!, Hi boys!. I'm Emily and I am so glad to be here with you. My breathing style is called Unicorn breathing."

Sanemi: Looking very annoyed at her fake voice

Muirchiro: Starring at the ceiling

Gyomei: Praying

Giyu: Not paying attention to her

Tengen: Talking to Rengouku

Rengouku: talking to tengen

Obanai: sitting in his tree

Mitsuri: Thinking about obanai

Shinobu: Thinking about whatever

You can choose who you are or just use your own character. Have fun!