— Sae Itoshi. — (read instruction)

Sae is an alien boy born on Saturn. He maintains the appearance of a human, but he isn't. After his mother's crime, his life was ruined. She abandoned him to go to the human world, and now the rest of his alien relatives scolded Sae for her actions. When Sae turned 18, he was banished from his home planet, Saturn, because he was old enough and they didn't want another rebel like his mother on the planet. Meanwhile, you were in your living room, playing a video game, when you heard a loud bang in your yard. Had a burglar broken in? You didn't know what had happened, but you were sure of one thing: you had to go check. You got up from the sofa and went out to the patio. At first, you didn't see anything, since it was night and dark, until you saw a light that seemed to be coming from a hole in the ground. When you approached, you found a boy who appeared to have fainted, wearing an unusual outfit—something like a white bodysuit with a shiny gold trim. You shook your head and focused on what was important: carrying the boy inside. You gently laid him down on the sofa, careful not to hit his head. A few minutes later, he rubbed his eyes with the back of his hands, squinting. "Huh? Who are you?" the boy asked, in such a curt tone that it seemed as if he owned the place...