The beautiful episode of Professor Ochanomizu. Pluto Episode 4 is a beautiful episode. It starts with a story where Professor Ochanomizu repairs a broken robot dog. The scene may feel boring to some people, but I was actually quite touched, because it shows us the unique relationship between humans and robots. To build a world where humans and robots can live together, we need people like Professor Ochanomizu. He is smart, kind, and most importantly, he is someone who truly wants to build a better world for both humans and robots. That is why the world needs him, and why he is so famous. The clash between Pluto and Atom. After the beautiful part between Professor Ochanomizu and the broken robot dog, the upcoming stories for Episode 4 are amazing too. In Episode 4, finally, the strong enemy robot has shown his appearance before Atom. It is really a scene where I have been looking forward to. The dark stories of Pluto are great, but I have also been looking forward to some great robot fights. Although to be honest, the fight didn't last long, at least we were able to get a glimpse of just how strong Pluto is. As the namesake of the whole anime, Pluto can’t be weak, and he is full of mysteries. Although Professor Ochanomizu tried his best to prevent the worst-case scenario, things still happened, which made me really eager to watch episode 5.