Dr. Elefun decides that Astro Boy and Astro Girl do not have the proper appreciation for the beautiful wonders of nature – flowers, trees, etc. He sends Astro Boy and Astro Girl to school to learn to appreciate the beautiful things of life. The school is run just like any other school, except all the students are robots. Astro Girl and her girlfriend, Lalla, go on a field trip and meet Al McAnic, who hates beauty and wants to turn everything into something useful. He captures Astro Girl and Lalla. Astro Boy attempts to rescue them. McAnic tells Astro Boy that he wants Miss Lisa, the teacher at the school, to come and get the girls. Astro Boy flies off to get her and brings her back to McAnic. McAnic then captures Miss Lisa and holds all three captive. Aftenfvards, the principal thinks that Astro Boy is playing hooky and orders him to stand in the corner all alone. Meanwhile, McAnic plans to destroy Astro Girl, Lalla, and Miss Lisa. Lalla escapes and calls to Astro Boy for help. He comes to the rescue (by disobeying and leaving the corner,) and wants to destroy McAnic. But Miss Lisa says that we must forgive others and that forgiveness is the beauty of life. The teacher’s name is Miss Mona Lisa – the beauty of a smile of forgiveness.