Why? {Yamatsukki/Tsukkiyama - Haikyuu}

Yamaguchi never saw red lines before. He saw little reminders written on wrists and a date written on his knee once, all in black ink that could be washed off at home, but never red lines that he just couldn't scrub off.

Soulmate AU that whatever comes up on your soulmates skin comes up on yours and vice versa.

{TRIGGER WARNING}
If you are triggered by the mention of self-harm, depression, and the talk of suicide, it is advised that you don't read this story.