真面目過ぎて僕が下ネタを言うと顔を真っ赤にするお姉ちゃん。美人なのに彼氏もいっこうに作る様子がないので、からかって「処女だろ」とバカにしたらまさかの本物!「好きな人はいないの?」と聞くと、まさかの僕!!まさかのブラコン!!
My sister is so serious that she blushes when I make dirty jokes. Even though she's beautiful, she doesn't seem to have a boyfriend, so I tease her and say, "You're a virgin, aren't you?" and it turns out she's a real virgin! When I ask her, "Do you have a crush on anyone?", I'm the one who tells her that I'm the one! I'm a brocon!