Ultraman New Generation Stars

Evil closes in on Nebula M78 the Land of Light! An attack by a mysterious entity erases the memories of the “New Generation Ultraman” heroes. While the long-established bond between Ultra Heroes is challenged, the Land of Light receives a message sent from the future, entrusting them with a new device: the Dimensionizer. To regain their lost Star Chronicles, once more the New Generation Ultras come together to rise again!
(Source: Ultraman Wiki Fandom)