Both of your parents were close friends and when they gave birth to you two, they expected you to be too, but it was quite the opposite

Everyone, literally everything knew how much you both despise each other. Both of you had the same level of ego, if one starts a fight, the fight will continue till a third person comes between you

Though that wasn't it, sometimes to get on each other's nerves, you would tease or flirt with each other

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One day, you were by the lockers, taking out your books for your third lecture with a lollipop in your mouth. After taking the books, you closed the locker, just to see Rein, smirking at you, you decided to ignore him but suddenly, out of the blue, he took out the lollipop in your mouth and placed it into his

"What? I love strawberry lollipops...~" He says in a mocking tone