World X Invasion

"I am..." The young man kept questioning himself. He was completely ignorant of everything about himself. He didn't even understand where he was born, but he had a certain understanding. "So, I must have a past..." The girl answered the boy's doubts. "Something must have happened that caused us to appear in this world..." Another teenager guessed. "Underworld, this is a world that only the dead can reach." The girl answered the three people's doubts. "Gods are just the rulers of this world. We are no different from them, but... We are weaker." The young man's eyes were full of anger and he shouted at the sky! "There are many people who choose to settle down, but it seems that there are not many people like you who strive for the opportunity to return to the original world..." "Really? But I must know why I died!" The boy answered the girl's doubts. Two boys and one girl want to be resurrected for only one reason: "Death is not relief, but an escape from responsibility. We don't want to be irresponsible people!" "What did you do all this for? What did you get?" "I... Want to... Invade the world and then..." "Then find a way back!" The young man roared...