"Brother Maori, do you have any ideas? The stinky boy on the other side is a detective known as Kansai! Since the disappearance of Kudo Shinichi's brother, you can't admit defeat if you have carried the banner of our Kanto detective! Find a way to teach this arrogant kid a lesson! Let him see how good our Kanto detective world is! After questioning around, the Twilight Police Department, who didn't find any important clues, rolled his eyes and put his hope on the sleeping Maori Kogoro, but the Maori Kogoro who didn't have Conan's possession reasoned about the IQ of half a pound and eight taels with the Twilight Police Department.

So he ......, "Huh? Clues? This one...... Well! Ahem! That one...... I'll take a closer look, the current situation is very complicated! ”

"Is it complicated? Actually, it's not complicated at all! After listening to Conan's uncomfortable account of the situation before the police came, Yuichi, who returned to the CD collection shelf again, played with the key from the victim's pocket in his hand, and suddenly laughed.

"Brother Youyi! What do you mean? Could there be any new discoveries? ”

"Ahh Yes! This key is very interesting! Look! He was able to open the charm on the keychain from the middle like a seashell, and put a strange thing on it. ”

"This is duct tape? What do you do with tape in your keychain? I get it! Did the murderer commit a crime like this? Yuichi Kudo, you're ready to kneel under the reasoning of my Hattori Heiji! Hattori Heiji, who heard Yuichi's words, suddenly lit up his eyes and turned around and left the victim's room.

"What's this keychain for? It's just a little special, there's nothing to study, right? Compared to Hattori Heiji's inspiration suddenly flashed, Mori Kogoro, who really didn't call, scratched his head and asked with a blank face.

"Uncle Stupid is going to have a mess today, damn it! If it weren't for my sudden malhealth, it wouldn't be impossible to give him some tips! It's just a common cold, so why do I feel like I'm being torn apart right now? Before coming to the Ikemura diplomat's house, Conan, who was poured a cup of white dry by that bastard of Hattori Heiji, endured the swelling pain on his body, his vision was a little blurry, and he leaned back on the seat and became secretly anxious, he hadn't forgotten who this black boy who suddenly appeared was here.

"Huh? What a strange stack of books! Why did it appear on the desk of diplomat Ikemura! Moreover, they are messed up with books that don't belong to one category yet, and even if there are things to look for, Ikemura diplomats don't stack them all on the table, right? If it's not him, who is stacking it at the table? What was the purpose of his stacking of books here? Is there any necessary connection between the secret of the keychain discovered by Yuichi, the late diplomat who likes classical music but plays opera, and this strange stack of books? Yes!!! Just thinking about the key clues of this case, the sharp pain caused by a sudden heart twitch made Conan's vision blur suddenly, and all that echoed in his ears was Xiaolan's anxious call.

"Conan, what's the matter?" Although he knew that it would not be his turn to be a cousin even if all the people in this world died, but in the situation of how many years the Kudo family had bullied him and bullied this little ghost, Yuichi couldn't help but ask with concern.

"It's nothing! It's just a little cold! Trouble imps are trouble imps! After drinking, is it okay to lie down at home and sleep? Do you have to run around with it, your body can't hold it, right? Really! At this moment, the Twilight Police Department added a burden and was thinking hard about who the murderer was, but Maori Kogoro didn't have time to care about this, and after muttering a few words indifferently, he saw that Xiaolan had already taken Conan to the next house and called the doctor to find a doctor, so he no longer cared about these, lowered his head and continued to analyze the case.

"Did you drink? It's still the wine that Hattori drank during the usual challenge, and if my memory is correct, I'll be able to see my stupid cousin in a while, but I don't know if he'll be able to grasp this few opportunities! No way! For the Kudo family! I'm going to have to teach this idiot with a low EQ! Listening to Mori Kogoro's muttering, Yuichi, who had some ideas in his heart, excused himself to care about the child and left the room.

And just after he was the only detective left in the room, Maori Kogoro, who felt that the eyes of countless people were falling on him, suddenly grew bigger, he really didn't have any clues at all! These little ghosts solve the case one by one and play dumb riddles, can't they be just simple and rude?

Forced into a corner with no way out, Mori Kogoro gritted his teeth and decided to break the jar and break the case, according to his own routine to solve the case, he wanted to use his best form to find inspiration, so after a few dry coughs to attract everyone's attention, Mori Kogoro began his detective show.

"Mrs. Ikemura shouldn't be the original partner of Ikemura's diplomat, right? When we came just now, it seemed that we heard the muttering of Master Ikemura Takazen, saying that you are a step-room? ”

"That's right! I married Ichimura later, but does it have anything to do with the case that is happening now? ”

"It matters! Of course it is! ”

"It's okay! Of course it doesn't matter! ”

Just when Mori Kogoro was blocked by Mrs. Ikemura's words and didn't know what to say, two completely contradictory words came in from the door at the same time.

"Huh? Hattori Detective, Brother Yuichi, what do you mean? ”

"What do you mean? Of course, there is only one meaning! That is, I have found the evidence of the criminal's crime and deduced the process of committing the crime, but in my reasoning, the gossip questions that third-rate detectives only ask when they are investigating an affair are not very useful! ”

"Oh? Is it? Then boy, you can start your show! I see how you can deduce who the murderer is without having anything to do with this clue! Hearing Hattori Heiji's confident speech, remembering the information he had just called the Metropolitan Police Department to check, Yuichi pulled out a weird smile at the corner of his mouth and reached out to make a gesture of please, giving up the stage of beeping to Hattori Heiji.

As if sensing the concession of his rivals from this gesture, Hattori Heiji straightened his jacket and confidently walked into the crime scene room like a victorious rooster holding the decisive evidence he had found in the side and the room.

"The murder case in the locked room arranged by the murderer this time has been solved by me! In fact, this room is not a secret room at all, and it has a loophole that none of us have noticed, and that is under the crack of this door! ”

"Under the crack in the door?" Hearing Hattori Heiji throw out the first burden, the surrounding onlookers asked very cooperatively.

"That's right! It's under the crack in the door! After a satisfied look at the bewildered eyes of the mortals around him, Hattori Heiji, who was full of superiority, took the fishing line he found in the Japanese room and began to show everyone the process of the murderer creating a secret room.