[m] I am looking for shoujo/romance manga where the female protagonist is hiding her true identity/secret life and has been found by a third person who is not the male lead. Do this temporary third person tries to take advantage of her but the male lead comes and saves her who was rude to her before.

THIS IS FOR MY JOB PLEASE HELP HUHU

Was it the manga called "Hanazakari no Kimitachi e". Is that what you are looking for?