Last Samurai

Known as the "Mighty Meowrior, Last Samurai". She is a samurai who used a dust stick as her weapon, which seems to be presumably used like a Naginata.
She first showed up right when he narrowly saved the Gunslinger from a cat named Diamond Claw, by blocking their attacks using his duster stick, she showed up as a reinforcement near the castle.
Tsutsumi recruited her in the bamboo forest, as shown in one of the flashback

After being completely overran, She and very few other survivors alongside Tsutsumi and Gunslinger are forced to go somewhere. Which eventually leads them to the citadel


The samurai wears a bulky armor with red oni mask and wields a duster stick as her signature "weapon". The samurai also have deep masculine and monotonous voice if wearing a mask, which leads to Arata being caught offguard after taking off her mask for the first time.
She has pink short hair and green eyes without the mask.

She worked alongside the Gunslinger and is friends with Arata.

(Source: Nyaight of Living Cats Anime EP9 and EP10)