I Don't Like You at All, Big Brother!! Special

お兄ちゃんのことなんかぜんぜん好きじゃないんだからねっ!! 第13話 妹より愛をこめて兄の『性態観察記』

Nao looks over her 'Big Brother's Perverted Habits Diary,' looking over Shusuke's misfortune with seeking out various porn. (Source: Wikipedia)