He knows that his younger sister is attracted to Wakamatsu , and thought the love is mutual when Wakamatsu states he is in love with the ' Lorelei ' .
His efforts to be closer to Yukari usually fail , and ended up mistaking Nozaki as her boyfriend .
Nozaki knows that Nozaki 's younger sister is attracted to Wakamatsu , and thought the love is mutual when Wakamatsu states he is in love with the ' Lorelei ' .
His efforts to be closer to Yukari usually fail , and ended up mistaking Nozaki as her boyfriend .