Ni-sen Nen... Moshiku wa... Ni-man Nen-go no Kimi e...

Ni-sen Nen... Moshiku wa... Ni-Man Nen-go no Kimi e (二千年... 若しくは... 二万年後の君へ・・・) is the 9th ending theme of the Attack on Titan anime, and is sung by singer-songwriter of.

It replaced UNDER THE TREE in THE FINAL CHAPTERS Special 2.

Ending animation
As the credits roll, we watch the Shiganshina District from the view of the tree on the nearby hill. Mikasa Ackermann, Armin Arlelt, Jean Kirschtein, Conny Springer, Reiner Braun, Annie Leonhart, and Pieck Finger visit the grave of Eren Jaeger. Several years pass and Mikasa returns with a husband and child to lay flowers on the grave. More years pass and an aged Mikasa visits again with a larger family. After the last flowers are laid in front of Eren's grave, Mikasa dies peacefully of old age, buried with Eren's scarf, and the tree is left alone for some time.

Time fast-forwards as Shiganshina District goes through an industrial period, growing into a modern city, and then a futuristic landscape. All the while, the tree, untouched by this progression, grows gargantuan in size. Paradis Island soon finds itself in another war. Eren's grave is nearly buried in the tree and surrounded by bullet shells. An unknown time later, the abandoned ruins of the once-futuristic Shiganshina District is nuked into oblivion by an unknown attacker.

Trivia

 * Although not credited, the song features Mikasa's voice actress and Eren's voice actor.
 * The verse which introduces Revo in the song is a reference to the ending of Season 3 Part 1, "Requiem der Morgenröte."
 * The song references "Feuerroter Pfeil und Bogen" during the verse sung by Revo.