Gin died before the organization was destroyed and was reborn back to the heyday of the black organization (when Kudo Shinichi was just fed APTX4869).
Organization setting: The Black Organization is still a transnational criminal group, but its internal factions are complex (Gin belongs to the action group and Hillier belongs to the intelligence group).
Rebirth foreshadowing: Gin retains the memories of his past life and knows that the organization will eventually be destroyed, but is not sure of the specific time.
Intention: I don't want to be separated from you