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

Nao, a junior high student, has a strong brother complex, which borders on an obsessive desire to be seen as a woman by her older brother Shuusuke. In an effort to overcome this complex, Nao decides to interfere with her brother's personal space, including disposing of his non-incestuous adult content. Her search through his belongings leads her to a photo album, where she discovers she's absent from pictures of his childhood. This revelation prompts Nao to question her brother's feelings towards her.