What an intense episode, but at the same time, it was super funny. Haha. Mari's and Dr. Hayase's reactions were top-notch, and Mikage was pretty funny too. He definitely adds some lightheartedness to the story. Thomas Edison was funny as well. I'm not sure how accurate it is to what really happened in history, but their reactions were cute. Another cliffhanger at the end, the animation of the creature at the end was quite intimidating.