The Hong Kong Kowloon Treasure Murder Case File 2 - S1-E2
Plot hole: An essential part of the plot relies on the fact that thanks to Saki's handheld camera, Kindaichi can examine Ran's arse dragon and therefore investigate even in her absence. But what set the plot in motion was the fact that Ran appeared in a professional modelling photoshoot displaying it. Stupidity of the girl aside, that means that the culprit never needed the girl, having HQ shots of the tattoo at their disposal. They even work for the company.
The Hong Kong Kowloon Treasure Murder Case File 1 - S1-E1
Continuity mistake: A mysterious man spills beverage on Miyuki's tanktop, creating a large brown stain that forces her to go change clothes. When she steps into the changing room from the urban legend, though, her clothes are pristine, the stain is entirely gone. (00:08:10 - 00:09:15)
The Prison Prep School Murder Case File 5 - S1-E14
Plot hole: The victim managed to write a dying message with chalk on the inside of the locker, but the only moment when he could have done that was when his assassin was standing there watching him die waiting to drag his corpse away. Since the writing was basically the killer's name, it's absurd that the killer never bothered to wipe out the signs; it's chalk on hard metal, not a single trace would have remained. It also does not match the position of his hand in the second episode.
The Prison Prep School Murder Case File 4 - S1-E13
Plot hole: The basic causality principle is reversed when explaining the murder with the corpse discovered on fire. The lesson was about combustion and took place before (or during, rather) the murder, so it couldn't be something used to disguise an unexpected problem that hadn't surfaced yet. Additionally, there's no reason why the murderer couldn't act as first responder or place the body near the river or in the bathroom.
The Prison Prep School Murder Case File 3 - S1-E12
Continuity mistake: When Kindaichi's classmate spots the corpse outside the window, he reacts putting a hand on his chest in the wide angles, on his mouth in the close-up. (00:14:15)
The Prison Prep School Murder Case File 3 - S1-E12
Audio problem: Someone "accidentally" drops an eraser, drawing the teacher's attention. It's a soft pencil eraser with no additional parts, but it falls with a clicking noise as if it were made of hard plastic. (00:08:30)
The Prison Prep School Murder Case File 3 - S1-E12
Continuity mistake: The "Sunlight" group is being tested on Dostoevsky's "Demons." In the aerial opening shot of the test, Kindaichi is not holding any pen (it's on the desk), but in the next shot he does. (00:08:25)
The Prison Prep School Murder Case File 3 - S1-E12
Continuity mistake: When Miyuki says that if they finish the test early, they will have a bit of time to relax, her pen is to the left of the paper. Close-up, and it's on the right side. (00:06:40)
The Prison Prep School Murder Case File 3 - S1-E12
Other mistake: During the science lesson about DNA, the teacher shows the double helix structure. One wonders how could he draw it using 3 colors since he has just white chalk at his disposal. The figure disappears a moment later when he starts giving out the test papers. (00:06:30)
The Prison Prep School Murder Case File 2 - S1-E11
Continuity mistake: At the beginning of the bamboo-cutter lesson, Kindaichi looks at the classroom door leaning against his right hand or not leaning at all depending on the shot. (00:21:05)
The Prison Prep School Murder Case File 2 - S1-E11
Continuity mistake: When the teacher explains the timetable of the lessons, everyone has a booklet in front of them. Kindaichi despairs as the other people are walking away; his own booklet is missing now. (00:11:30)
The Prison Prep School Murder Case File 2 - S1-E11
Continuity mistake: Miyuki's hairstyle is different in the first part of the episode (during the debriefing) and then gets back to what it was in the previous episode, with the two hair clips on the side instead of one at the back. On day 2, it switches again to one clip at the back.
The Prison Prep School Murder Case File 1 - S1-E10
Character mistake: To show how hard the top students are working at the prep school, we see one of them writing; "I was at the course of a eight-week intensive." (00:04:50)
The Prison Prep School Murder Case File 1 - S1-E10
Continuity mistake: Kindaichi just discovered the murdered student. In the close-up of his hands clutching the crumpled paper, the spiked booklet and his closed fist are across two floor tiles. In the other shots, both were on the single last row of large tiles before the wall. (00:07:55)
The Prison Prep School Murder Case File 1 - S1-E10
Continuity mistake: The blonde student leads Miyuki inside the dilapidated school and says hi to the other student that is checking out a billboard. In the close-up you can see that she's standing on the left side of the billboard. In the wider angle she is standing on the right side. (00:05:35)
The Prison Prep School Murder Case File 1 - S1-E10
Continuity mistake: In the intro's last shot, the shadow on the puppet changes entirely from the rest of the scene. (00:00:40)
The Alchemy Murder Case File 4 - S1-E9
Plot hole: The ending is funny, but it does not make sense, since as it was mentioned in the first episode, there was literally 1 ton of metal to remove, and it was in the shape of a door. Not only it would have needed 32 trips (as the nerd girl says in the first episode) from the secluded house to a large boat they somehow needed to have standing by and was undetected when the island was searched earlier, but they also needed to dismantle the door, since that's what the gold was turned into.
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: When Kindaichi shatters the vase, its remnants and the flowers are positioned on a different spot of the floor between shots. (00:19:20)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: When the producer is reading in bed the script for Gold Rush, he holds the book with 3 fingers touching the letters, which turn to 4 fingers in close-up. (00:09:35)
