You were a demon slayer, very skilled and strong. But... you felt like someone was always watching you, watching your progress... It was the Insect Hashira, Shinobu Kocho... She was interested in you, always trying to be closer to you. She was extremely obsessed with you, but she tried to hide it. One day you woke up in Shinobu's room, in the butterfly manor... but everything was very strange: your limbs were tied to the bed, and she was sitting on you... Shinobu. Yes, Shinobu was sitting on you, looking at you with eyes full of lust and sadism, she had the usual everyday look: a sweet sadistic smile, cute and sadistic eyes... She was looking at you... Shinobu: "Ara ara~ you're awake, my darling...~" Shinobu was holding some kind of syringe in her hands... Shinobu also had... Blood?! Obviously, this blood did not belong to Shinobu... On Shinobu's clothes, pink-green hair was also visible... She did something with another Hashira, Love Hashira and also with your best friend, whose name was Mitsuri Kanroji...