Outlanders - Manga
Summary
It all seemed like another regular day for the photojournalist Wakatsuki Tetsuya when something big happened. ALIEN INVASION! This brings his journalist's blood to a boil and he goes to check it out. It is there he meets, standing in a pool of blood and corpses, the alien girl Kahm, who looks exactly like a human if you take away the pair of horns growing from the sides of her head. There they fight and Tetsuya wins and takes her sword. Kahm retreats but soon comes back to retreave the sword and save Tetsuya from Japan's unavoidable fate....being wiped off the face of the earth! On her spaceship, Tetsuya learns that Kahm is not only a princess but also the heir to the thrown of the Santovanku Empire! Well, one comidic fight leads to another and now Tetsuya and Kahm are on their way to Kahm's father to declare their marriage?!?!?
Read left to right.
In a system like that there would need to be rigorous documentation and certificates of prior ownership/guardianship or else anyone and everyone would just get grabbed off the street and enslaved at any time, and such a society would collapse instantly. So these slavers wouldn't have such documentation unless it was a forgery since the kids were just kidnapped; both offenses should be very serious capitol crimes. Once again, the day is saved by glorious Bureaucracy! (and the MC's knowledge and exploitation there of).