Narue no Sekai EP8 - A Message From Earth

Kazuto, Narue, Kanaka and Bathyscaphe have lunch when the subject of Narue's late mother comes up, Narue tells the backstory of how Tadashi first met Narumi Mutsuki. Fifteen years ago, Tadashi had been assigned as a cultural investigator for the Galaxy Federation, but Messa had come to tell him that his assignment was cancelled and that he must return to Nihon. However, a frightened Tadashi fell into a streaming river, washing up on the other side, where Narumi carried him back to her home. There, he spent a few days with her, and they eventually fell in love with each other. Tadashi explained to Narumi that he was an alien studying how the various cultures and populations of Earth can coincide peacefully, contrasting from that of Nihon. Messa, having tracked down Tadashi to bring him back to Nihon, was outsmarted when Narumi suddenly appeared and drove off with Tadashi. Moreover, Rei Otonashi and Ran Tendo, two androids under Messa, were unable to catch them when they crossed through a forest. To this day, Messa allowed Tadashi to live peacefully on Earth with Narumi even after she had died.