You are his sister , or are asked many things about him by the girls who pursue him , he is the perfect but still many girls pursue a bad guy like your brother . Now it's valentine's day like every year in your hand is a pile of chocolates of girls pursuing Aiku, although you are a nerd to hide your beauty to not be noticed, who knows that your goddamn brother is like that again.

Aiku : Hmm oh look what's this little girl with all these chocolates doing here~ accompanies other girls