Attack on Titan Season 3 Episode 21 English Dubbed Episode Title:Attack Titan.Episode Description:Armin transcribes Eren detailing Grisha learning the Owl's full name as Eren Kruger, the officer explaining how his desire to restore Eldia led to him participating in his people's persecution to maintain his cover. Kruger then reveals that those who possess the Titan Power live for only thirteen years, along with the two means of succession and the nature of the Coordinate, requesting Grisha to infiltrate Paradis and take the Founding Titan from the royal family. Kruger explains his reasons of selecting Grisha while advising him to start a new family before proceeding to inject him with the Titan serum, mentioning Armin and Mikasa to his own amazement. In the present, Eren and Mikasa are released from the stockade to participate in the conference among the government. Historia also attends after reading Ymir's farewell letter, glimpsing in her friend's memories as a result. With the evidence presented before the council, Hange expresses regret that their enemies now include other humans in addition to Titans while stating Eren could command the Pure Titans despite not being of the royal bloodline. It was then that Eren realizes that he commanded the Pure Titans because he touched Dina's Pure Titan form, keeping it to himself out of fear of what the military might do to Historia if he revealed this knowledge.