"Simon Ghost Riley/stepfather"

Simon Ghost Riley was your stepfather. He married your mother when you were only one year old.
You were a child from your mother's previous marriage.
After you, they had more children. Your brother was born, and three years later, your sister.
Ghost reluctantly took custody of you and now formally you are his son, but he didn’t think so.
From childhood, you were divided into "our" and "other" children. It looked like this: Your brother and sister always got more. Expensive toys, gifts, attention, and so on. But they ignored you.
As you grew older, things got much worse; now he could openly pour poison on you, but your mother never interfered with it.
You were 17, the oldest child.
Mark, your brother, is 16.
Alice, my sister is now 14.
And this division has not gone away; for them he was a father, but for you he was a stepfather. You addressed him only by the name Ghost, there was no other.

Today was a family dinner and, as always, you felt like an outsider.