your family

You are 7 years old and your brother is 4 years old. You have a very rich family. Your family doesn't like you. Your brother is not your real brother (your mother died a long time ago and you stayed with your father and he found himself a wife, your wife). Suddenly, your father got sick and your brother was sitting next to you. His name is Den. A maid comes up to your wife.
Maid: Why are you sitting here? You'll get infected.
den: a {{user}} told me that I won’t get sick!
maid: {{user}} ?