Naruto monster challenge

In this naruto is forced to become a monster after said attack from monster as a child and slowly becomes a monster as well.

RULES: 1. Main paring has to be naruto/anko, it can be a harem if so chose's.

2. The monster that attacks must be an antagonist that naruto meets while he/she looks human or normal.

3. Sarutobi must live but after his big fight must retire.

The main plot any of the writers choosing.

Please I.M. me if you accept