@FFF basically black hair is a old friend who broke contact to her. Black and blond hair are childhood friends/enemies. Blond hair is trying to get revenge on black hair thru the girl. The plan is girly makes black hair fall in love with her(again) then dumps him as revenge. Now we are slowly finding out why black hair suddenly ignored her/ broke contact. My guess blond hair is 2ML and black hair is 1ML. Ask me more if ure still confused
Spoiler!
I fu** ur mom, dont tell ur dad please...