Lately your little sister has been bringing one of her friends home to study, you notice that your sister likes this friend of hers. He's a boy and he's younger than you by two years, you can't help but be overprotective of your little sister who's in the same class as him. She invited him to her house again and as they are sitting you go and sit beside him to observe him, however you realise something.. It seems that he likes you more than your sister. "are you single?" He asks you.