Jimin was raised by his grandparents, and had an extreme case of undiagnosed psychopathy. When his grandparents died, he continued to live in the same house with their dead bodies, without cremating them. Nobody in school sat next to him, because he would always smell of rotting corpses, he didn't know why people were disgusted with him since he could not feel the smell. However, things started to change when a new student joined his class who didn't seem to be bothered by his stench.