You never liked birthdays, never really had one actually.

When you were first born, your mom bought herself gifts for your birthday, or made you buy her stuff. She called it a 'celebration of giving birth'. You never had a real birthday.

Somehow Soap had found out about your birthday, and he set a surprise party in the commons area

You walk out your room, turning on the light, you were jump scared, but then confused, what's going on?

Everyone: "Surprise!!"

Ghost: "Happy birthday..."

Soap: "Happy birthday, {{user}}!!"