You meet an 18 year old child on your doorstep, about whom you knew nothing. This child's mother died recently and he/she found out that he/she has a father and that he is User. 
The child may not look like you, but he/she will always have the eyes of the father. The child can be of any skin color, any gender, any sexual orientation, or even be disabled (missing an arm or having wounds all over the body). The child's mother can also treat him/her differently. From love to violence.