Ayumi Yoshida

Amy Yeager, known as Ayumi Yoshida (吉田歩美, Yoshida Ayumi?) in the Japanese versions, is a character of the anime and manga Case Closed, known in Japan as Detective Conan (名探偵コナン Meitantei Conan). In the manga her name was translated to Amy Yoshida.

Ayumi is introduced into the series after Conan Edogawa joins her class. Soon after, she, along with Conan Edogawa, Genta Kojima, and Mitch Tennison form a group they name the "Junior Detective League," or "Detective Boys" (Shounen Tanteidan) in the original version. Much to the dismay of Genta and Mitsuhiko, Ayumi has a crush on Conan. In the fifth movie, she openly tells Ran of her love for him.

Ayumi has a personality much like any other normal schoolgirl, and is obsessed with popular trends in her school as Masked Yaiba and Japanese monster films. While being quite naive, she is very dedicated to her friends. Her cheerful personality and her courage to meet danger in spite of her own fears has supported the "Junior Detective League" and especially Ai on more then one occasion.

Starting in volume 39 of the manga, Ayumi becomes the only one of the children who uses Ai Haibara's first name, calling her "Ai-chan" in the Japanese version. Mitsuhiko and Genta call her "Haibara-san", while Conan simply calls her "Haibara."

Source: Wikipedia