What episode does Sailor Moon and Tuxedo Mask find out Rani is there child in the future?

In the Sailor Moon anime, Sailor Moon and Tuxedo Mask never discover that they have a shared child, Rani, with Prince Darien in the future. Sailor Moon does give birth to a new daughter Chibiusa with Prince Darien during the course of Sailor Moon Super S while still in elementary school. Would you like to know more information?