Arne no Jikenbo • The Case Book of Arne

Arne no Jikenbo • The Case Book of Arne - Episode 3 discussion

*Arne no Jikenbo*, episode 3

**Reminder:** Please do not discuss plot points not yet seen or skipped in the show. Failing to follow the rules may result in a ban.

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**Streams**

* [Crunchyroll](http://crunchyroll.com/series/GT00365733)

**Show information**

* [MyAnimeList](https://myanimelist.net/anime/60255/)
* [AniList](https://anilist.co/anime/183984)
* [AniDB](https://anidb.net/perl-bin/animedb.pl?show=anime&aid=18967)
* [Kitsu](https://kitsu.app/anime/49323)
* [Official Website](https://arne.asmik-ace.co.jp/)

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**All discussions**

Episode|Link
:-:|:-:
1|[Link](https://www.reddit.com/r/anime/comments/1q5p1yi)
2|[Link](https://www.reddit.com/r/anime/comments/1qbxhd5)
3|[Link](https://www.reddit.com/r/anime/comments/1qi88tg)

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Commentaires

AnimeMod2026-01-20 18:57

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ObvsThrowaway51202026-01-20 19:11

Seems there was more dark secrets lurking in that mansion than whatever black magic shit Lynn’s pops was up to. The kid really was kept in the dark about all that stuff huh? There’s a lot to be solved and something supernatural is definitely still on the loose. Arne and Lynn have their work cut out for ‘em.

diacewrb2026-01-20 21:29

> Seems there was more dark secrets lurking in that mansion

Not surprised when everyone was still using candles in the dark, light bulbs clearly exist there.

Projectors, tracksuits, telephones, colour photography and LED wands also exist.

Maybe Klaus was a cheapskate with electricity, the staff can add that to his list of offences.

L33tHaxorus2026-01-20 19:27

Wasn't expecting a Poirot shoutout in the big 2026

hasanman62026-01-20 19:32

I didnt think the backstory would be this long. I wonder if we will have enough time for the main story

Tradition_Leather2026-01-23 15:35

I think the backstory is actually the main story

TyraniTEMPESTar2026-01-20 19:33

Hmm seems like this case is suiting up to be sorta pseudo "*Clue*" like, with multiple suspects all accusing one another and with their own possible motive.

Lot of shady stuff going on.
Not only was Mr. Klaus Reinweiß involved with possibly killing innocent people in order to revive his dead wife, he was pimping out his maids on the side to his "guests."

Im interested to see what the role of vampires are in the case. Arne must've known Lynn's mother since he remembered her locket in a previous episode, and now we have "Nachzehrer" another vampire thrown into the mix.
Things are starting to get a bit interesting.

DocMcCoy2026-01-20 21:39

>with multiple suspects all accusing one another and with their own possible motive

Maybe in the end, every single one did him in, similar to Murder on the Orient Express (we did get a Poirot shout-out, after all). Only that they didn't know about each other, I guess (I never read the book, and it's been a while since I saw the 70s movie, but I *think* at least in the movie, they're cueing up at the door to stab him?)

Shimmering-Sky2026-01-20 19:34

- [Interesting limitation.](https://i.imgur.com/Xcawomv.png) Makes sense, though.

- [Something feels very off about this…](https://i.imgur.com/PRZns6u.png) [](#sakurathink)

- [Oh](https://i.imgur.com/08YVkH6.png)… [oh geez.](https://i.imgur.com/e4VMl2p.png) [](#emiliaohdear)

- [Hm…](https://i.imgur.com/YElJtrR.png)

- [What does *that* mean…](https://i.imgur.com/ZUWUwAo.png) [](#csikon)

- [RIP, her dad really *is* dead though.](https://i.imgur.com/eN8JRjH.png) [](#toradorasalute)

- [It is a very cool shot.](https://i.imgur.com/zOZawT6.png) [](#cinema)

- [That’s harsh…](https://i.imgur.com/sEjCiUq.png) [](#mug1)

- [lol](https://i.imgur.com/pyddIdL.png) [](#azusalaugh)

- [Oh boy…](https://i.imgur.com/qJcVjGq.png)

- [The implication of that…](https://i.imgur.com/ZKpsqbc.png) [](#barakamonnotcool)

- [Yikes, he’s trying to pin the blame for stuff on everyone else…](https://i.imgur.com/uYUM5oo.png)

IceWeaselX2026-01-20 23:08

>[It is a very cool shot.](https://i.imgur.com/zOZawT6.png)

[First thing I thought of.](https://i.imgur.com/pcNvuhD.gif)

NanDemoKnaives2026-01-20 20:22

The household finally revealing their true colors once the Head of the house dies is a little amusing, I feel bad for Lynn though. She was unaware because they were keeping up appearances and so it must be shocking to find out people you have been living with couldn't care less about the Head.

I thought this was going to go differently though, I was expecting each of the servants to die one by one. Like Lynn's father might have been saving their bodies for last sort of thing.

mekerpan2026-01-20 20:25

Query -- Are ANY of the staff actually innocent -- or were they all involved with shady activities? Hopefully we will finally find out NEXT week.

melindypants2026-01-21 13:10

I want to think Gordon is innocent because he's holding everything together but that can mean he's even more suspicious - this mystery is really good so far!

I do wonder if we will figure out the accomplice and if it's even anyone in the household within an episode OR if they will set out on a journey to find the accomplice while solving smaller mysteries on the way.

DocMcCoy2026-01-20 20:44

"Ein Unglück kommt selten allein", meaning that misfortune or accidents tend to come in bunches. If something is going wrong, this is most likely not the only bad thing you need to watch out for

Again, this is a proper German proverb, yeah

DocMcCoy2026-01-20 21:11

A Nachzehrer is an older German word for a mythological figure similar to a vampire. Whereas the vampire was Slavic in origin, the Nachzehrer was kind of the German counterpart

The word Nachzehrer is not really used or known anymore nowadays. It has been subsumed by Vampir

DocMcCoy2026-01-20 21:26

Oh, and I don't know if someone else has already done this for the previous episodes, but as a further German lesson: Reinweiß means literally "clean white" or "pure white", as in a white without any impurities

Nowadays, the most common use of the word, however, is to describe not a pure hex-code FFFFFF white, but a specific warm-ish white tone. Specially, Reinweiß is the name of [RAL 9010](https://www.ralfarbpalette.de/ral-9010.png).

(RAL is a color management system similar to Pantone, only that Pantone is USian, and RAL is German. You'll find RAL used in building design and architecture, for example: when you visit a hardware store, you will find RAL color numbers on stuff like outlet covers, light switches, etc. so that you can buy ones that fit the ones you already have)

Muffin-zetta2026-01-20 21:33

Yo that’s a rad painting

YlfaTheForsaken2026-01-20 22:51

Oohh so she has a house, but not a home. I guess that would make it easier to runaway with a vampire.

Lots of shady goings-on in that house, oh to be a fly on the wall,

djthomp2026-01-21 02:28

That sure went sideways once the truth about what was going on in the mansion started to come out. I feel bad for the maids.

We know that further down the line Lynn is off having adventures with Arne without any of these people in sight, so I've been wondering how many of them will also die. Hopefully the maids don't get turned into the stitched together necromancer zombie lady, but she has to come from somewhere.

Piko-a2026-01-21 06:29

I mean, it's not like there isn't a body just missing a heart in the basement, and the vampire hunting a heart.

SYZekrom2026-01-21 02:36

Damn that's a crazy drop "there's petty love drama going on with everyone in the mansion. Oh yea it started because the maids are being forced to *entertain* guests" jesus christ

ShadowGuyinRealLife2026-01-21 05:16

What is the point of Arne's child form anyways? It seems to just be used for gags, but this isn't a gag show. Is this just his "pass of as human" form? I mean it worked with Louis so I guess that's not implausible. If you saw someone with fangs, you'd probably think they were wearing a costume, but you wouldn't grab their teeth just to pull them off.

Well the moment I found out what the Klaus was having Elise do, I was like "Yup, someone on the staff killed him." Heck maybe they're all in on it. If they just didn't like the old master because he was mentally sick but were innocent, they should still at least be worrying if the reduced headcount means reduced need for a large staff.

What is the setting supposed to even be? the first episode I placed this firmly in Victorian times. While various forms of projectors existed, the one previously shown appears to be invented in the 1910s. But Lynn is wearing a tracksuit that could be made in the 60s at the earliest (yes I know there were earlier tracksuits, but they aren't made of the same stuff modern materials are and they don't "move" with the body modern ones do). The Zipper alone is post Victorian from the 10s. The telephone is a style outdated by that time. And apparently they see things with candle light. After episode 2 I thought Lynn joining Arne led to a modern girl traveling to a different dimension where technology was backward but this clearly isn't the case. Easiest explanation I can think of is Klaus is cheap and everyone else is just poor. In rural England in the 1950s, depending on what town you went you could see technology up to the 1950s... or those living like Victorian times, or in some rare cases see people living like they did when England was its own kingdom since not only electrification did not reach the poorest communities, but neither did cars or any other signs of modernity. Kalus can afford modern stuff but is too cheap to pay the electric bill and everyone else (even the servants and the whole town we saw earlier) are all just poor.

guineaprince2026-01-21 07:25

The setting is Vibes. General Turn of the Century aesthetic, but not really adhering to it beyond the aesthetic.

EffectiveImportant512026-01-26 22:28

A lot of people tend to let their guard down around children. It is why that is not necessarily a bad form to have if you are a detective. Adults will say a bunch of things around children because they know they don't understand the implications of what is said.

Also, have you ever babysat a young child. The way they disappear into stuff and get into spaces you never think they would. It is actually a useful thing.

guineaprince2026-01-27 02:58

Replied to the wrong comment, I think.

NoHead17152026-01-21 10:42

Poor Lynn. The whole household is falling apart. But at least now we can understand how she ends up with Arne's Detective Agency.

DAFA0072026-01-21 11:15

How good is this? I don’t know if it’s worth jumping in or not. What would be a few comparable anime? Struggling with time and would hate to give it a couple of episodes and not enjoy it.

melindypants2026-01-21 13:11

I think it's pretty enjoyable - it's similar to Undead Murder Farce imo if you've seen that.

DAFA0072026-01-21 21:49

The best anime you could’ve compared it to was Undead Murder Farce. I’ll give it a watch now, THANKS!🙏🏼

melindypants2026-01-21 21:52

Awe nice - I hope you enjoy & see you in the discussions for it next week~

DAFA0072026-01-21 21:56

You’re very kind! I look forward to being part of the discussions next week 😊

athrun_12026-01-21 18:07

It seems the culprits are in the house itself. They could have been the one who told Lyn's dad about necromancy and stuff.

Fools_Requiem2026-01-22 05:57

This episode is a fucking mess. Just a bunch of scenes very loosely tied together with nothing making a lick of sense. Poor editing and screenwriting. Arne spends much of the last episode not wanting to do this case nor does he like Lynn, but suddenly this case is "interesting" and he suddenly takes a liking to her. There's hardly a reason given for his sudden change of tone.

The first episode should have been a massive indicator of what kind of effort they'll put into the show. Not enough time is given to these stories. It all feels rushed.