"NO! That can't be true! That just can't be true!" Yelled a little boy in a train station toilet in Osaka. The boy had black hair, blue eyes, a dark complexion and his clothes were way too big for him. He had a striking resemblance to Osaka's best student detective, Heiji Hattori.
"Hey, I'm Heiji Hattori, you snore nose!"
I was just about to say that!
// Unbelievable, I'm so exhausted that I even argue with the narrator. // Heiji thought to himself. How did he get into this position?

~~ Flashback ~~

It all started when he had received an anonymous letter in which the sender claimed to know something about the black organization. He was supposed to meet the mysterious sender at Konashi Station on the 18th at 5 p.m. Of course, Heiji had called Conan immediately to tell him about the letter and how he felt about it. "I don't understand why he didn't send the letter to you.I have nothing to do with it. "he said.
"I have no idea," replied Conan, "but there must be something wrong with this. Better not go!"
"Yes, I'll go, because that's the only chance to get to the organization. And if we find the organization, we'll probably find the poison that the professor can turn into an antidote. After all, we don't want that you stay such a little punk forever, don't you Shinichi? "
"You just talk! You would try anything to grow up again if you were in my place."
"Could be. But since that's not the case, I can take care that you and this ... what's her name again?"
"Do you mean Ai?
"Yes, I mean that. So that you and Ai are finally getting back to normal and are no longer running around as three-cheeses.", He finished his sentence.
"You won't let that dissuade you anyway. But at least call the police beforehand.", Conan advised him.
"Did you forget where my father works?", Heiji asked annoyed.
"Yeah yeah okay. Well then, good luck! And please call me when you're back!"
"Yes, I will! See you then" He hung up and considered. It was a trap, that much was clear. But how could he bypass it and use it to his own advantage?
Still lost in thought, he went to bed.

The next two days passed quickly. Heiji was just having breakfast when it occurred to him that he had an "appointment" today. At 4 p.m. he left the house and made his way to the train station. At 4:55 p.m. he stood at the agreed meeting point and waited. When the mysterious letter writer still did not show up after ten minutes, Heiji began to get nervous. Why was he kept waiting?
While he was still looking around, a rag was suddenly pressed over his mouth from behind. He fell to the floor, unconscious.

When he woke up again he was still completely dazed. He had a headache and couldn't see clearly for the first few minutes, let alone get up and look around.When he could see reasonably well again, he noticed that he was lying in a toilet cubicle. He got up slowly. He turned to the door and tried to open it, but the knob was too high. He stretched and actually managed to open it. He went out of the cabin and looked around.
// What's going on here? Why is everything so big all of a sudden? //, he thought. Then he suddenly remembered what Conan had told him. Which is why it had shrunk. Hoping this was just a guess, he went to a sink and pushed himself up to look in the mirror hanging over the sink. And what he saw there, shattered like glass all his hopes that this couldn't be true.
"NO! That can't be true! That just can't be true!"

~~ End of flashback ~~

So now he was standing here looking at his new body.
//What should I do now? Conan told me that he himself never told anyone about his true identity for fear that something might happen to his friends.But how am I supposed to tell this story to anyone in the first place? Nobody would believe me anyway. // Dejected, he shuffled out of the toilet. He was aware of the looks of the people around him, but he ignored them. He rummaged in his pockets and found a few more coins. He quickly ran to a phone booth, tossed the coins into the slot, and dialed Conan's number. It was just a glimmer of hope, but still.

* Drrriiiiiiiinnng *
"Yes, Mori detective agency here, Conan Edogawa on the line."
"Shinichi, is it you?" Asked Heiji.
"Heiji? What's wrong? You sound so excited. Did something go wrong?", Conan asked
"Yes! Listen, the organization wanted to get rid of me. I was waiting for the letter writer and suddenly someone stunned me from behind. And when I woke up again, I was also shrunk!" Said Heiji breathlessly.
"WHAT !? It doesn't exist!", Conan shouted.
"What is not there?" Asked Ran who had been watching TV in the next room."Nothing. The professor just called me and told me that he invented a totally cool new game." Conan lied
"Oh. I thought what happened" Ran withdrew again in front of the telly.
"So again: You were poisoned by the organization and have now shrunk too?"
"Yes!"
Conan was speechless. How could that happen? And why Heiji?
"Where are you?" He asked Heiji
"I'm still at the train station. Shinichi, what should I do now?" Heiji asked desperately.
"Take it easy!", Conan tried to calm him down, "try to come home first. Pretend you've got lost and say your parents are away. I'll call you in the meantime and pretend I'm you and explain to your parents that it may be a while before you come. "
"How are you going to do that?", Heiji asked perplexed.
"I have my voice transposer.", Conan answered him.
"Oh yes, I forgot. Ok, I hope it works.""Good. Then I'll try to persuade Ran and Kogoro to go to you. I will think of some reason. I hope.", Conan said
"I hope so too. Well we'll see you then, hopefully tomorrow at the latest. Then we'll look further," said Heiji, now a little less battered.
"Yep. Now we have one more reason to find the black organization: You want to get normal again!" Conan grinned
"Stop it, that's not funny!" Heiji shouted back.
"Yeah, you're right," Conan admitted. "Let's try to make the best of it"
"You say that so easily"
"No. But that doesn't matter now. Now first see that you come home. We'll see you as soon as possible."
“Yes, well.” With these words, Heiji hung up. Then he ran home. Meanwhile he thought of an "alias".

Meanwhile, Conan sat on the couch and thought.
// Why did the black organization want to get Heiji out of the way? Have you finally discovered my true identity and are now trying to kill all my friends?And why then with APTX 4869? Don't they know that the poison made me shrink? It's all very strange.
He stood up. // So now I just have to think about a reason to go to Heiji. Hmm ... wait a minute. The newspaper said that a new amusement park was opening in Osaka. That would be something. //
He then went into the living room to tell Ran about Heiji's idea to meet him for the opening of the theme park in Osaka.