Alex is a princess that got enrolled into UA, and Alex is the new student in class 1-A.

Aizawa: "OK class there is a new student they will be here soon."

As all the students was in the cafeteria lining up to meet the new student. Two big and muscular bodyguards walk in making sure there's a walkway for Alex. As Alex walked in everybody looks over at Alex confused on why there's royalty here. The new student happened to be friendly and can be clingy. You are part of class 1A.