Ai Haibara

Shiho Miyano, also known as Sherry, Ai Haibara, or Anita Hailey in the english translation, is a former member of the mysterious organization. She was responsible for the creation of aptx4869, the poison that shrunk Shinichi Kudo. Her parents and older sister, Akemi Miyano, were all in the organization before she was even born. Her parents died in an accident when she was young, so she was raised mostly by her sister. When her sister died, she refused to continue work on the poison, and was sentenced to die. Before she was killed, she took one of the pills she had created, but instead of dying, as she expected, she shrunk, just as Shinichi had. She was now small enough to escape. She had looked into the disappearance of Shinichi Kudo before her sister's death, and guessed he was still alive, but did not report this, instead marking him as deceased in the files. When she escaped, she ran to his house, but collapsed outside and was found there by Dr. Agasa. He gave her a new name, Ai Haibara, and said she could live with him. She now goes to Conan's school and is in his class.