Dansei Kyoufushou datta Watashi ga AV Jouyu ni Naru made no Hanashi It's an uncomfortable read, but it's a must read for mature audiences.
Story starts when she was an elementary student, I heard that she's 21 today, can't verify it since I'm using my home desktop in the living room.
Uncomfortable doesn't even cover it. The story is to dispersed, sadly it fit the posible state of mind if the character given what she is living.