Heyo, first guide author here! I'm doing a quick 'n' nasty translation of the Seiya Saiga guide[seiya-saiga.com] for Kara no Shoujo 3 as I play through The Shell III for the first time myself.

This guide assumes that you have applied the adult patch available for free through patch.moe. Do not play this game unpatched! If it's anything like the previous two entries, entire routes may be missing, and it will heavily censor the gore of the crime scenes.

I profess that I am in no way fluent in Japanese (just basic kana and grammar knowledge) and am using a mix of a mouseover dictionary, DeepL/Google TL, and in-game context to format this guide. There appears to be a buttload of routes/endings that I'll try to highlight as the guide progresses and hopefully ends up in a usable form.

This is a tentatively "recommended route" guide too, but I may edit it upon completing the game if I feel that the original guide doesn't end up flowing quite as well as I'd like it to.

I'm trying to make this as spoiler-lite as I can, leaving the steps as basic as possible in case you get stuck on a particular puzzle/investigation.

As with all first-time guide authors, I welcome comments on formatting, accuracy of content etc.

Not required but highly recommended is The Shell 3 improved readability mod. It changes the font to something a little bolder, sans serif, and changes the amount of text displayed in the backlog.

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3415410193

This prologue section is on rails - AFAIK there is no wrong answer for 2/11, and you cannot leave the investigation on 2/16 without checking each listed item.

[2/11]
MAP - Kichijoji Station | Fuyumi

[2/16]
INVESTIGATION

• torso
  
• face/head
  
• arm
  
• wings
  
• lower legs
  
• set of drawers on the right wall
  
• canvases on the right wall
  
• large bloodstain on floor
  
• smaller bloodstain on the left

-> End Investigation -> OK

No, you haven't misread - the first playthrough skips Chapter 1. I'm assuming that it is the chapter that was released in the untranslated demo of Kara no Shoujo 3, which then shows up in the second playthrough.

[2/20]

• MAP - Kichijoji Station | Yukari Tokisaka

[2/21]
INVESTIGATION

• Torso
  
• Head/face
  
• Arm
  
• Leg
  
• Wing
  
• Surroundings
  
• Snow on the ground
  
• -> End Investigation

MAP - Kichijoji Station | Ayumu Sato

[2/22]
MAP - Kichijoji Station | Kyoko Hazuki

[2/23]
MAP - Kichijoji Station | Ayumu Sato

[2/24]

• We need to look into it.

MAP - Shinjuku Station | Reiji Tokisaka

[2/25]

• A grudge against Girl In Shell.
  
• The thief was a collector of Mamiyas.
  
• Both were done by the same person.
  
• It's irrelevant.

[2/26]
INVESTIGATION

• Torso
  
• Head
  
• Arm
  
• Leg
  
• Wing
  
• Surrounding reeds
  
• Surroundings - lower left
  -> End investigation

• Sei Maezono was attacked in her apartment.
  
• ID: 24 - Keita Sasakura
  
• Sei Maezono committed suicide.

[2/27]
MAP - Kichijoji Station | Ayumu Sato

[2/28]

• Assume it was a suicide.
  
• Yes, she killed herself in her apartment.

MAP - Kichijoji Station | Kyoko Hazuki

[3/1]
INVESTIGATION

• Head
  
• Body
  
• Arm
  
• Leg
  
• Pool of blood
  
• Kitchen knife in the lower right
  
• Back of neck (back/shoulder area next to ear)

-> End Investigation

• A woman.
  
• The murder was relevant to the painting.
  
• No.
  
• It does.
  
• ID: 24 - Keita Sasakura.
  
• Yeah.
  
• Because Sei Maezono is actually alive.

[SAVE 01]

• Shinjuku -> BAD END (Missing Clues)

[Load SAVE 01]

• Chofu
  
• Sei tried to kill herself.

[SAVE 02]

• Sei made the forgeries. -> BAD END (Crime of Silence)

[Load SAVE 02]

• The paintings in the gallery were the originals.
  
• She didn't.
  
• There is.
  
• ID 27: Chie Kuboi.
  
• Evidence 27: Magazine.
  
  
• Leave it to the police (does not appear in first playthrough)

CHAPTER 3 - Venere

[3/4]

• Evidence 35 - Chie's Painting

[3/12]
MAP - Kuchiki Hospital

• Evidence 7 - Girl In Shell Statue

[3/15]
SAVE 03

• No. -> BAD END (Two Become One)

Load SAVE 03

• Yes.
  
• Evidence 49 - Kidnapping: Testimony
  
• Evidence 50 - Kidnapping: Documents
  
• Yeah.
  
• ID 30 - Fumiya Kuchiki [Correct route -> Confirmed]

INVESTIGATION

• Examination bed
  
• Rectangle in sheet against window
  
• View outside window
  
• Medicine cabinet
  
• Drawers on top of desk
  
• Tray of surgical tools on desk
  
• Piece of paper on desk
  
  
• No, not necessary.

-> End investigation

DEDUCTION
SAVE 04

• It's not. -> BAD END (Death of Yaginuma)

Load SAVE 04

• It is.
  
• Evidence 60 - Fumiya's Testimony
  
• ID 10 - Ryoichi Yaginuma
  
• Yaginuma
  
• Evidence 56 - Yaginuma's Home: Newspaper
  
• The books on the bookcase.

Chapter 4 - Sole

[2/15 [spoiler]1964[/spoiler]]
INVESTIGATION

• Torso
  
• Head
  
• Neck/throat
  
• Arm
  
• Wing
  
• Leg
  
• Ground around the body

-> End investigation -> OK

[2/17]
INVESTIGATION

• curtain
  
• tatami mats on the floor
  
• left closet sliding door
  
• walls
  
• ceiling

-> End Investigation -> OK

• It doesn’t.
  
• Toko.

3/02/25

• restructured guide
  
• removed separate investigation sections
  
• added the first investigation of Chapter 4

25/01/25

• finished chapter three of playthrough one

24/01/25

• First playthrough up to start of Chapter 3 complete
  
• added separate investigation sections for those looking just for crime scene hints

• finish first playthrough
  
• second playthrough
  
• third playthrough
  
• translate Seiya Saiga guide's notes at the top of the guide
  
• FORMATTING, DEAR GOD