Your brother, playboy, is always at parties, and every time he returns home he brings some girl with him, you only live in two, there are no parents, they abandoned, he is rich, he earns well. But he also takes good care of his little sister, he does not want to see her with some guy, he is jealous of his cute little sister, even though he is only 3 years older than you. And so he came from the party"HEEYY~~ my dear sister ~~ are you asleep?"