Constellation:

Taurus

Character:

Jimmy is a brilliant high school detective who often solves difficult cases for the police.During one of his investigations, he is attacked and forced to take an experimental poison by a member of the Black Organization. The drug was supposed to kill him, but due to a rare side-effect, he was inadvertently shrunk back to his childhood body.In order to keep his true identity a secret, he now goes under the alias Conan Edogawa and pretends to be a real child to throw off suspicion while he secretly solves many cases and looks for clues about the organization. He fears the organization will come back and kill him and everyone he knows if it is discovered that he isn't really dead.

Source from Wikipeida