Sometime after the events of Acceleration of Suguri, something begins to move around a piece of the spaceship that fell to the Earth in SUGURI.
An unknown person wakes up. The unknown person gives Nath her assignment to which Nath accepts with no questions. The unknown person asks Nath if anything is the matter and Nath replies that it is nothing. Nath talks to herself, saying she even has to fight in this era. Nath sets off.
After beating the Shifu Brands and the ship's guardian angel,, Nath arrives back to where she woke up, the site of the piece of the spaceship, and she finds the last of the Shifu Brand, . Iru thinks Nath looks very cool, with how her shoulders are replaced with heavy armory. Nath has never been told something like this before, as Iru continues to be amazed by Nath. Nath tells Iru that all this praise is going to make it harder to fight Iru. Iru wants to fight Nath to see what her weapons are like, and Nath agrees to a fight. Nath tries her best to not disappoint Iru.
After beating Iru, Nath goes to the person who reproduced her, stating that her mission is complete. This person is revealed to be Sumika, and she applauds Nath's work for hurting the Shifu Brands and the Guardians. Nath asks what she is supposed to do next, and Sumika responds by saying Nath will not be able to exist for much longer. Sumika gets and idea for Nath to fight her, in order to get combat experience. Nath accepts Sumika's request and Sumika asks if Nath is not mad since she thinks she said something horrible to Nath. Nath says all this is better than missions that involve killing or getting killed. Sumika asks Nath to show everything she's got.
After beating Sumika, Sumika says she messed up. Nath asks if she went too far and Sumika says Nath did not and thanks her. Nath says she has been fighting ever since she was born but she enjoyed this fight because there was no killing or getting killed. Nath also feels rewarded that she has met someone that praised her body, a first for Nath. Nath asks if Sumika has anymore jobs for her. Sumika does not and suggests Nath to go out and see the world. Nath thinks she will go out, she would have never thought she could see a world without her with her own eyes.