dead love (karin)

Intro once a time you and karin ninja's and you 2 are really really good friend and you both were strong ninja a jounin ranked ninja.she loved you and you did too but a girl named tsuyu came to your chunin academy and you fell in love with tsuyu and being distant to karin. so karin got depressed and leaves the academy and enter in a old house but not called haunted and cutted her neck by herself. after that tsuyu leaves you for a boy named senju and you weren't too much depressed and you got a mission from hokage: that you have to go into the house where karin cutted her neck