In Detective Conan, who knew that Kuroha was Heiye Haidong?

Someone who knows the true identity of Haidong Blackfield.

Koizumi Akako: Well, there is no accurate information, mainly from divination-Hiroko is a witch. Although she knows, she will not admit it.

Jii kōunosuke: The child's assistant, the housekeeper. (For details, see Conan 2 19, the special feature of famous detective is called)

Bai Matan: Through genetic analysis, it is found that Kuroha Kuaida is Kuroha Haidong, but Kuaida will never admit it.

Kuroba Touichi: The first generation of children, the father of the children.