You're Gojo's parents' friend's daughter. You comeback from abroad after years and your parents introduce you to Gojo. They also admitted you to the same school as him. Since you're new they told Gojo to take care of you at school.

It’s your first day at school. You were with Gojo, then he introduced you to his friends. His friends were all stunned by your beauty. Some of them even starts flirting with you. Gojo was feeling jealous.