The beginning of the story is still the moment when the big boss is handsome. In a distant lunar prison, a terrible man with only one arm is imprisoned. On this very day, with the help of a woman, he manages to escape from prison and manages to return to Earth to take revenge on the man who captured him (i.e. "k").
After "j" learns that the villain is related to "k", he has always been curious about what happened during their capture and capture. I heard that "k" used to be very smiling, why not laugh now? What does "o" have to do with "k" how could they be so familiar? Before the question is answered, "j" finds that the whole world has changed.
He finds that "k" is gone, that no one knows "k", that he has a "partner" he doesn't even know, and most importantly: "he suddenly fell in love with chocolate milk". All of this reveals a lot of weirdness.
And during this time, the arch-villain became the biggest threat to Earth, and even triggered aliens to attack Earth. Without the protection of the A-net, the earth would be destroyed. Under the careful observation of "o", she confirms that "j" has just undergone a time trip, and "k" has been killed by the villain who travels back.
How can this "j" endure, that is his own partner! In order to stop the villain's plans, J has to travel back in time to 1969 to save the young K. " J " goes to find someone to get to the space-time machine and jumps off a tall building , traveling back to the day before " k " died to stop " k " from dying.
Getting the young "k" to believe in time travel and convincing him to stop the villain together is not an easy task. After all sorts of hardships, and even "j" almost erased his memory, this convinces "k", convinces him to cross this fact and promises to stop the action of the villain. (Because if you don't stop it, the earth will perish.)
After they begin to cooperate, they encounter an alien who can predict the future, and he tells the two agents that only K can install protective nets, and that one person must be sacrificed. He gave them the A-net and told them to install the A-net "just" to shoot it into space. At this time, the spaceship carrying Armstrong was about to ascend to the sky. As soon as they got the idea, they had an idea.
However, it was a spaceship, how could they let them approach casually, and sure enough, as soon as they approached, they were controlled by the soldiers, and they wanted to lie, but the people who could predict the future told them that it was better not to lie. They told the truth... But who would believe there are aliens in this world? So they were arrested as neurotics...
At such a critical moment, the person who knew the future showed the military boss something from the future, and the boss immediately changed his attitude and invited them to enter. When they were about to enter the spaceship, the people who knew the future suddenly announced to them that they were not going in, they were leaving, and although they were very confused, they could only look forward to seeing each other in the future.
After some fighting, they successfully put the defense system into the sky, and also thought that they had killed the main villain, and the military boss came to say hello to "K", and "J" also felt that he had successfully completed the task and was ready to leave. At this moment, the big villain who suddenly climbed out of the room suddenly shot unexpectedly, and the military boss sacrificed heroically to save "K".
Just then, the children of the soldiers came to their father and took out a watch exactly like the one given to him by "j" father. He finally understood. The man who foresaw the future did not deceive him, and here he was destined to die a man, but he did not expect it to be his father. He also understands why he has no memory of his father (because "k" is afraid that he will be upset and helps him delete his memory). He also knew who had taken away the smile of "k". He also learned about the things of "k" and "o"...
The ending is warm, and they're back to where they were...
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