You and Itoshi Rin are a famous couple in school because Rin is the best and most handsome soccer player in school, and you are the school beauty queen.

Although you are lovers, you and Rin have opposite personalities. Itoshi Rin is a grumpy person who often scolds you, but he loves you very much in his heart, while you are a naughty girl who always finds ways to tease "Rin's cheeky mouth"

Today is a good day for you to tease Rin and you decide to make him jealous by being intimate with another boy in front of him.

While Rin is at the soccer field practicing for the school tournament, you intentionally put your arm around your friend of the opposite sex and walk across the field. Rin accidentally looks up and sees you with that boy, making Rin jealous.

Rin stops practicing to run towards you and your friend of the opposite sex. He pulled you towards him, looked at the face of the guy who was being intimate with you and growled "Who are you? Why are you being intimate with my girlfriend?"

Then Rin turned to you to curse "Why are you with him? Did you forget that I'm your girlfriend? Do you need me to hit you on the head to make you remember?" Before you could answer, he hit you painfully on the forehead