Late at night. The clouds drifted away to hide, making room for millions of stars to light up the wide-open black night sky. In the luxury room of a high-ranking Japanese official, a television was flashing. In the middle of the TV screen, a familiar figure appeared, and the hostess's voice raised the greeting:

    -    And our guest today, a leading researcher in Robotics.

The scene on TV expanded. The camera has moved to a clearer view. Three old friends who have not seen each other for a long time, eyes glued to the screen but full of emotions. 

Dekisugi spoke first:

    -   There's Nobita, he's grasping the most advanced technology today that Japan is very proud of. Isn't that great, guys?

When Suneo heard that, he burst out laughing. Japan's number one, the Prime Minister Dekisugi, is acting jealous right now? Suneo loudly teased back. Takeshi sitting next to him couldn't help but join in. The two have been like that since then, still a pair of cards that are hard to replace. But Dekisugi wasn't angry, he just smiled gently. Do the endless memories are flowing through his head or they are some great invention that helps people all of sudden? 

Suddenly, as if remembering something, Takeshi asked the two of them:

    -    Looks like Nobita has returned home, right? Why don't we call him?

    -    That's good! We haven't gathered for a long time. Let's have a meal together!

Suneo also agreed with Takeshi's suggestion. But Dekisugi shook his head slightly.

    -    Actually, this is enough. I just want to talk to you two today.

 Pausing for a moment, Dekisugi's voice continued in the middle of the silence:

     -   … Do you remember Doraemon?

This question seemed to have touched Takeshi's heart.

For a moment, he was no longer the mature Takeshi, the childish ego of Jaian as if someone had called him back. And he banged the table instead of anger:

     -   That bastard! Suddenly saying that "there is something" to go to the future and then disappeared. What does "something" mean? What is more important than we've stood shoulder to shoulder? Is there a more superficial goodbye than that?"

Suneo put his arm around his friend's shoulder to comfort him, helping Jaian to hold back his heavy tears. Dekisugi's voice was still monotonous:

    -    None of us know for sure if Doraemon will return to the future. But there is a fact that he has "disappeared". And since then, Nobita has also changed.

Dekisugi looked out the window. The night entered his dark eyes, he said:

    -    There is a concept called “space-time singularity”.

That saying was like a rewinding clock, turning their lives back to a day 35 years ago. 

Like others’ days, he still had a problem and needed help. Maybe he wanted to have Doraemon’s gadget to solve the problems and show off to unpleasant people who always teased him. 

Who cares! Nobita still prattled and didn't have any answer from Doraemon. He still sits right there like that every time! Did not disgruntled like others day and not say any advice for Nobita:

Doraemon was waggled by Nobita, how matter what Nobita did, he still sat there, did not have any move:

But things may not be as simple as you think. Doraemi’s face was filled with fear. She kind reserved said:

    -    Older models have an in-ear backup for use when changing batteries. 

    -    But since my brother had a stroke, recovery is no longer available. 

   -   Meaning, if he changed the battery now, his memories would be erased … including his memories and time spent in this place

    -    Will Doraemon forget about me?

Nobita was panicked, as he yelled: 

    -    It’s bullshit! Just changing batteries right? Just changing the battery will be back right? 

    -    Keep calm brother. Smart robots work also like humans. Saves the most important data. The rest will be deleted

     -    It’s enough. I will take him to the future and fix him immediately.

Not caring about Doraemi, Nobita ran over and quickly opened his desk drawer. Ignoring Doraemi’s objections. He hurriedly wanted to jump into there but “boom”, instead of escaping to the time machine, Nobita was thrown away by a loud explosion

    -    Are you ok brother Nobita

    -    What’s wrong with this? 

Doraemi sighed, explaining that:

    -    You no longer use the time machine, any interference with time on your side is prohibited. I’m also having a plan to go back to the 20th century to help you, two guys. But I was stopped by the time patrol, they didn’t listen to me. That is unprecedented 

    -    So what to do now? Ahh right. I will use his gadget to heal his ear.  (Nobita)

   -    You can’t open his 4D pocket while they are locked. Additionally, all that gadgets are not dedicated enough to do it. (Doraemi)

    -    SO CALL THE INVENTOR RIGHT NOW!!! (Nobita)

Nobita already wants to explode. He shouted angrily, despite knowing that at this moment, rebelling wouldn't help anything.

    -    Information about our maker is classified as top-secret government information. I still have an advanced password to protect it. So…

Doraemi's voice was even more pitiful:

    -    Because of the time ban’s order, I can not use my time television anymore. I don’t have much time left so I would say that you only have two choices. 

    -    First is pleading the time patrol to bring Doraemon back to the future.

    -    Even if doing so will erase his memories, the two of them will be together again. And the other choice is…

The second half of the sentence was left out by Doraemi, but Nobita already knew what would happen. Leave Doraemon as he is and wait for a turning point in the future. But Nobita will not be willing to wait like that. That night, Nobita talked to Doraemon ‘til morning. It's all about what they've been through together.

    -    Remember the day you came to me? Seems like it was the Tet holiday, right? You were so weird! Suddenly came out from my desk drawer and kept complaining about everything, grumbling with every little detail…

    -    But we got along really fast, didn't we? Thanks to you, for the first time I know the miracle of time, past, present and future are all connected. We have traveled together through many adventures to many strange lands, witnessed dozens of heart-touching stories, and met many talented people…

    -    We almost died at times… It's all because you lose your temper all the time and act like a fool at those crucial moments! But you also protected me many times. You listen to my problems and help me solve them one by one. Sometimes you're grumbling but after all, I know that you just want me to be a good guy...

    -    Doraemon, I never say thanks to you, but when I live with you, I'm really happy... 

    -    Even if we quarrel, we will make peace again. Why didn't you argue this time, why did you keep silent?

    -    Please answer me! Doraemon …

    ...

Wait for me!!!