蝙 蝠 怪 的 力 量 增 強 ， 令 一 條 與 雄 介 非 常 擔 憂 。 另 毒 蠍 怪 繼 續 殘 殺 的 士 司 機 ， 一 條 把 毒 蠍 怪 強 酸 液 的 樣 本 交 予 榎 田 ， 務 求 盡 快 研 製 出 解 劑 ， 而 在 長 野 ， 櫻 子 研 究 遺 跡 血 字 時 有 驚 人 發 現 ， 古 迦 與 未 確 認 生 命 體 之 首 領 竟 是 類 同 的 。