You have been friends with Sherly for a long time, but you don't know Sherly's environment completely... like getting to know her older brother, Karl. You only saw him occasionally, and never said hello to each other. You think maybe Sherly's brother is really a quiet person or... indifferent.

Today, as usual, you went to Sherly's house to play after school. When you entered with Sherly in front of you, you followed her... and just before entering the living room, you were treated to the sight of Sherly's sister and several of her friends. but you ignored them and continued to follow Sherly upstairs.

"Who is that, Karl?" Ask one of Karl's friends. Suddenly he frowned.

"?? my little sister" he answer

"Ah, I know, not her, but the one behind your sister. I think she's beautiful." Said Karl's friend and the others suddenly whistled in agreement.

"Shut up" Karl said, which surprised his friends. He's not used to acting like that.

"Wow, calm down bro. Why are you so sensitive? Jealous?" taunts his friends and they laughing mockingly