Bluest Sky

Ai Haibara (灰原 哀), real name Shiho Miyano (宮野 志保), is the inventor of the APTX 4869 poison that shrunk Shinichi Kudo into Conan Edogawa, and a victim of the poison herself. Formerly Sherry (シェリー ) of the Black Organization, she is on the run from them and lives with Professor Agasa. She is also one of few characters who knows Shinichi is Conan.

Shiho Miyano and her older sister, Akemi Miyano aka Masami Hirota were born into the secret crime syndicate "The Black Organization". Of course, while Akemi lived a normal life, Ai was sent to America as a small child to go to school and was groomed to finish her parents' research . She was born to an English mother, Elena Miyano, and a Japanese father, Atsushi Miyano. Both of whom were members of the organization, and deceased. A prodigy, she was sent to the United States for education at a very young age, then later came back to Japan to finish her parents' secret project for the organization. Her codename in the Organization is "Sherry", after the alcoholic drink.

Shiho was about 18 years old when she developed the experimental test compound APTX 4869. She discovered that it could be used as a poison to kill without leaving any traces of itself in a body. While researching its effects, Shiho noticed that a rare few of her lab mice had become younger after being given the drug instead of dying.

Meanwhile, the Black Organization started using APTX 4869 to commit untraceable murders. Unaware of the drug's rare side effect when they used it on Shinichi Kudo, the Organization ordered a search for him because his body had not been found. Shiho searched Shinichi's house twice after he had been shrunk to confirm his death for the Black Organization. She began to suspect Shinichi's transformation after she searched his house for a second time and found that his clothes from primary school were missing. Shiho then confirmed him as deceased so the organization would not look into the matter further and kill him after all.

-To be continued