While Toshihiko tries to convince Rie's stepfather to join his battle against Öba, Kazuma rushes to fight him by himself. During his travel to the building, it is revealed he "ate" Knife he begged to kill him. And later tries killing another member, but halts as his friend informs him that the "medicine" Öba gave him turned many humans into Shokujinki and that possibly he's still suffering from the dosage...