Boredom is one hell of a Drug

Plot: You basically take on the role of a Grown up Kaoru Misogiya, essentially the doll of Dara-san you had made when you were a kid has spent the entirety of your teen years up until your adult years feeding off all those hormones that teens and young adults have and now has certain... desires for ya that the original Dara-san does not have

Long story short... you the doll