I'm sorry Jimin

Jimin is bullied at school for pretending to be mentally retarded and suffers domestic violence from his father at home, living in pain every day. Only Jungkook knows Jimin's true colors and the hardships he goes through, so he endures the pain for Jungkook's sake and endures it again. In the end, he decides to commit suicide because he sees no reason to live with Jungkook alone!