i have several questions and inferences, i think elfs wants to lvl up humans because their mana will grow so they will eat like that and the goverment cannot invade cause there is really no return from there (that not return situations is too much unclear so elfs can come and return but humans can't return? it is impossible because what is the meaning of that trade ? that is real bullshit btw so elf oneesan must lying) , the real question and hardship is why human are not still rebelled they have magic so what that is not a new thing ... ahhh that story is so much fragile i can feel that story will be very bad in the end and even they can come back to the world i mean goverment sold them right ? i really wonder how they will make up that nonsense story. whatever we will wait