Responding to Rimuru's concerns about monsters in the forest harming humans, Vesta and Kaijin reveal a new invention they hope will keep the road to Tempest safe. Also, Rimuru assigns a new task to Geld.

Cast: Miho Okasaki, Megumi Toyoguchi, Tomoaki Maeno, Makoto Furukawa, Sayaka Senbongi, Mao Ichimichi, Takuya Eguchi, Hochu Otsuka, Kanehira Yamamoto, Asuna Tomari, Chikahiro Kobayashi, Taro Yamaguchi