Uchuu Kyoudai Episode 81 English Subbed Episode Title:Worst Enemy.Episode Description:Mutta's two weeks of NEEMO training begins, staying in a simulated lunar environment 20 meters below the ocean's surface in the Florida Keys. He scuba dives into the habitat Aquarius II, where he meets technical support diver Hamilton, and two astronauts from the class above, George Love and Andy Tyler. Mutta is pleased to be joined by Kenji, the other astronaut on his team from the 23rd class (nicknamed 'Ants'), but unknown to him, only one of the two of them will be picked for a lunar mission. Meanwhile, Hibito enlists the help of Lowry and Dr Olivia to help him in his rehabilitation in secret.