Mushi are beings in touch with the essence of life, far more basic and pure than normal living things. Most humans are incapable of perceiving Mushi and are oblivious to their existence, but there are a few who possess the ability to see and interact with Mushi. One such person is Ginko who travels from place to place to research Mushi and aid people suffering from problems caused by them.
Kagami Junichirou was known as a physics genius when he was a teenager, and he was even published in “Nature.” However, after college, he suddenly lost all interest in science. As a NEET, he’s devoted himself to his anime blog and nerdy collecting habits. He claims he has a serious illness called “I can’t do anything I don’t want to do.” Desperate to get him to do something with his life, his little sister manages to get him a job teaching physics at his old high school. He’s certainly an unconventional teacher, but he becomes fairly popular with the students. After helping a girl who’s being ruthlessly bullied, Kagami finds that he actually likes teaching. Will he continue his career as a weird teacher? Will he go back into physics? Or will he end up back where he started?
Edward and Alphonse Elric are two brothers gifted with the ability of alchemy, the science of taking one thing and changing it into another. However, alchemy works on the theory of Equivalent Exchange — for something to be created, something else of equal value must be sacrificed. When their mother dies, Edward decides to do the unthinkable — bringing her back to life by breaking one of Alchemy’s biggest taboos and performing Human Alchemy. Thinking they have nothing more to lose, he and Alphonse make their attempt — but something goes horribly wrong. In the process, Alphonse loses his body and Edward loses his leg. Ed manages to save Al by attaching his spirit to a suit of armor, but at the cost of his arm and leg.