Before I Come Undone (SugaxJungkook)

Yoongi's world has been turned upside down. The boy he loved is dead, and there seems to be no more reason for him to live on as well. Nightmares plague him and the longing is torturing to endure. Even though his friends try desperately to bring him out the pit of depression they found him in, it's not until a mysterious boy with amnesia shows up at their school that the boys begin to understand Yoongi's tragic past. This is the story of lost love, true friendship, and a boy's desperate struggle to free himself from the guilt of his past.
Warning!!!! This story contains self-harm, attempted suicide, cutting, and depression.
I also paired up the other BTS boys in this story, though probably not the ships you are expecting. The other couples are V-Hope and JiminxJin. Even if you don't ship the other couples, please give it a chance :)