The Shell Part I: Inferno

The Shell Part I: Inferno

Innocent Grey · 2023 · Visual Novel, Detective, Mystery, Psychological Horror, Choices Matter

PC
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About The Shell Part I: Inferno


A visual novel set in the Showa era, depicting the story of a detective who receives a request from a young girl and uncovers the secret hidden within her.

FEATURES

  • 10+ hours of story
  • Multi-Ending
  • Full Japanese voice acting by seasoned professionals
  • Fully remastered with new HD assets

CHARACTERS

Occupation: A member of the Oba Girls’ Academy Art Club
Hobby: Observing and raising insects
Yukari is Reiji’s younger sister who he has a bit of an age gap with.
Since he can’t do household chores to save his life, Yukari naturally came to do them all herself.
She’s a brave but gentle and modest young woman who faithfully supports her brother.
Being of a scholarly mindset, she is quite knowledgeable about insects.
However, the bugs she raises in her room occasionally make a run for it, and sometimes she serves them up as dishes without warning...
“I just want to be there to pick you up whenever you fall. That’s all that matters to me...”
Occupation: A member of the Oba Girls’ Academy Art Club
Hobby: Sketching, moonlit walks
Toko acts like an adult, but is in fact an odd creature, neither really an adult nor a child.
Her casual mode of speech seems to contradict her appearance as a refined young woman, and she always manages to stand apart from the crowd, never letting others dictate how she acts.
Feeling an inexpressible sense of uneasiness with her current "existence,” she hires Tokisaka to “find her true self.”
“I want you to find something... Me. My true self.”
Occupation: A member of the Oba Girls’ Academy Art Club
Hobby: Illustrating picture books.
Toko’s best friend, she sees in her the vision of an ideal lady.
Tōko, coming from a poorer family compared to the other students of the prestigious Oba Girls’ Academy, has a strong inferiority complex.
Due to this, she despises the other students, her mother, and even herself.
She would rather Tokisaka, who’s suddenly shown up in their lives and has started building a rapport with Toko, keep his distance from Toko.
“...Please stay away from Toko.”
Occupation: A student of Oba Girls’ Academy and an author
Hobby: Making dojinshi
Tsuzuriko is very cheerful and sprightly.
She may seem like the total opposite of Yukari, but they actually get along very well and think of each other as best friends.
She’s made her writing debut in literary magazines and has contributed articles to some less classy rags as well, which she of course keeps secret from the Academy.
She was unwillingly given the nickname “Tojiko” by Tokisaka after he decided that “Tsuzuriko” was too hard to pronounce.
“I specialize in mystery nove—Hey, who’re you calling Tojiko?!”
Occupation: Owner of the Moon World café
Hobby: Making sweets
Kyoko is a widow whose café Moon World is located near Kichijoji Station.
She’s known Tokisaka for a long time, and they count each other as true friends and confidants, intimately familiar with each other’s lives.
As they have both lost someone dear to them, they often act as mutual advisors as well. Her café has a lot of regular customers and seems to be profitable.
“One Kyoko’s Special Blend, coming right up.”
Occupation: Server at the Moon World café
Hobby: Cooking (still learning)
Hatsune is a young woman who used to work at the brothel Yukishiro over in Ueno.
Due to the incident that happened in Ueno and public pressure, the brothel was demolished some years prior.
After it was destroyed, the madam adopted her and gave her the last name “Amemiya.” Now she lives and works at Moon World.
“Oh, umm, you can call me Hatsune. I’m still not used to the new surname.”
Occupation: Curator
Hobby: Sleeping
Maris works at the Tokyo Metropolitan Art Museum as a curator.
She’s half-Japanese, as is clear from her blond hair and blue eyes, and she rarely says more than a few words at a time.
She’s an excellent curator who is exceedingly knowledgeable about art.
She comes off as quite mysterious, but could it be that she’s actually a bit scatterbrained?
“...Reiji... detective?”

SUMMARY


March 1956.

In a Tokyo that’s slowly returning to its former glory after losing the war ten years prior, Private Detective Reiji Tokisaka takes on the case of a girl he meets in Inokashira Park.
“I want you to find something... Me. My true self.”

A wave of crimes has been crashing down on the city. Sergeant Uozumi, Tokisaka’s childhood friend and former coworker, asks him to investigate the murders.

Meanwhile, sitting off in a corner of the town of Hoya is Oba Girls’ Academy, the school Tokisaka’s younger sister goes to and where two students have recently disappeared under mysterious circumstances. The vice principal of this academy, Tokio Saeki, implores Tokisaka to find them.

Having taken on all three of these cases, and with Vice Principal Tokio’s approval, Tokisaka enters Oba Girls’ Academy as a teacher in order to dig up information about the students.

It’s there that he meets her again. Toko Kuchiki, the girl who asked him to look for her true self, with a voice as light and as clear as a bell and a casual way of speaking that doesn’t match it.
“Heya. Figured I’d be seeing you soon, Detective.”

More and more victims turn up as the days pass, and the investigation he thought would be oh-so-easy stalls. For some reason, the number of disappearances and unidentified bodies don’t add up.

And the newest victim is—

The secrets of a case from six years prior may just be the key to the current unending cycle of tragedy, and the thing that cracks this woeful world’s shell may be one girl’s smile.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jul 13, 2026
One of the best detective VNs out there. Great pacing, and the pieces really click once you unlock the endings. It's not as easy as just turning your brain off and picking things, you actually have to think (although not that hard). I ended up in 2 or 3 dead ends (I straight up had to reset my entire save) before I finally started putting the story together and deducing enough clues to reach the "real" turn of events. So yeah, I'd say there are a lot of ways to screw up and get a premature game over, but nothing too crazy. A major flaw, though, is the unnecessary sex scenes spread throughout the whole game. The story and gore are just so good that I think you can forgive them, I just skipped them outright. The way the truth is revealed through the main character is honestly great. He's a 10/10 protagonist, and his gameplay sections are mostly okay. They're just point-and-click, but the corpses really carry those scenes. The cast of characters is great. I just wish there were more male characters, but it's okay, the ones that are in the game are honestly absolute chads.
1 found this helpful
Recommended Jul 14, 2026
Kinda dissapointed ngl. Like ofc its not bad. But atleast KNS1 does not make up for the glaze. Just my opinion but yea I dont think this is that good. I still have faith in KNS2 and 3, im sure they will be better like I played 30min of KNS2 and im sure it will be way better with just those 30min. But yea overall it dissapointed me.
Recommended Jul 12, 2026
9/10
Recommended Jul 7, 2026
easily one of the best mystery vns
Recommended Jul 5, 2026
Finished the game and got all the 15 endings. I was interested in this game, as i enjoy anything containing mystery, detective, horror, and such themes. I bought the game before knowing a patch was needed to improve the experience, as it removes multiple endings and censors the gore imagery (which makes the investigations a little harder as you only see black bags). What I disliked from that patch was the unnecessary adult scenes, obviously, as it was removed from the Steam version, i wasn't expecting to end up with this type of content. Though i don't mind that much the adult parts in certain games, i was bothered by it in this one, they were very random and don't fit the mysterious atmosphere of the game for me (not to mention most scenes involve multiples of the highschool girls characters, which is just uncomfortable within this universe). I wish the atmosphere were more unsettling though i feel like something was missing. But the story was really enjoyable and kept me wanting to know more thoughout the investigations. Looking foward to play The Shell part II My note is: 6/10
Recommended Jul 5, 2026
I love this series to death, been wanting to actually play it for years but never had the chance. Then when i recalled about this gem, I didn't hesitate to buy it on the summer sale. What can I say? I only had the gist of it before actually playing, now I'm too attached on this tragic, bitter sweet masterpiece. Wish that there are more games (visual novels especially) that are this haunting... It sticks with you. Please give this game a try if you're thinking about it. Though yeah you need to have the patch to not miss out on the true end. Look past that and you'll find a well-written esp at the end of the trilogy where it wraps all up.

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