iiinova — where your digital self keeps evolving

Kaguya Project @kaguyaproject.bsky.social · 02/10/2026

Looking for a way to fill the longer nights and colder days of autumn? We have two dark fantasy tales ready for you to dive into at a special price to celebrate the turning of the seasons. store.steampowered.com/curator/4566...

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Kaguya Project @kaguyaproject.bsky.social · 01/09/2026

Unravel an ancient conspiracy, solve the mysterious case of a girl's undeath, and find a connection with a beautiful gender-bending alchemist! Ready to fall in love? Knight Case Files is currently 30% off as part of the Fall in Love Visual Novel Festival! store.steampowered.com/app/2656440/...

store.steampowered.com

Save 30% on Knight Case Files on Steam

"In the Phoenix Kingdom, there is a man known as the Corpse Killer." Thwart a necromancer's scheme in this dark fantasy visual novel.

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Kaguya Project @kaguyaproject.bsky.social · 24/12/2025

From Hyoukan Opera and Kaguya Project, we wish you all a happy and bright holiday!

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Kaguya Project @kaguyaproject.bsky.social · 08/12/2025

We're delighted to share we're taking part in the #ChooseWiselyFestival, which celebrates games where choices matter! In Knight Case Files, bad endings are not the end. There are hidden truths that can only be uncovered by facing the future head-on. But will you choose to?

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Kaguya Project @kaguyaproject.bsky.social · 27/11/2025

Knight Case Files is now out on Steam!! Working with this game to bring it into English has been a huge labour of love, and we cannot wait for you all to experience this story, world, and cast we've fallen in love with. store.steampowered.com/app/2656440/...

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Kaguya Project @kaguyaproject.bsky.social · 17/11/2025

Prepare for a dark fantasy visual novel mystery story about obsession and being haunted by the past... steamcommunity.com/games/265644... We can announce that #KnightCaseFiles will be released on November 27, 2025!!!

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Kaguya Project @kaguyaproject.bsky.social · 08/11/2025

Thank you so much to everyone who applied to test Knight Case Files! We've closed the form now, and will be inviting the testers to a private channel later today to get started. We can't way to see how you react!

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Kaguya Project @kaguyaproject.bsky.social · 06/11/2025

We're opening a call for beta testers! As our first game, HyoukanStudio's Knight Case Files, approaches release, we are looking for visual novel players interested in offering feedback and catching errors in the script. Sign-ups are open ↓here↓ forms.gle/NnmrqbVp5oKn...

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Kaguya Project @kaguyaproject.bsky.social · 29/09/2025

Are you ready to fall in love with someone new? Knight Case Files, a dark fantasy adventure for women with a male protagonist, is participating in the Fall in Love Visual Novel Festival, with a demo now available. store.steampowered.com/app/2753750/...

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Kaguya Project @kaguyaproject.bsky.social · 21/08/2025

Knight Case Files has just updated their demo to include Japanese voice acting! The voice acting in Knight Case Files adds so much to the atmosphere 🥰 If you haven't given the demo a try, this is an excellent time to get a taste of this story. store.steampowered.com/app/2753750/...

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Kaguya Project @kaguyaproject.bsky.social · 19/06/2025

Congratulations to our friends at Hyoukan Studio on reaching 1000 wishlists for their game, Knight Case Files! 🎉We're so excited for the game's release in autumn/winter, and we're especially excited to hear the partial voice acting that's going to be added❣️

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Kaguya Project @kaguyaproject.bsky.social · 23/04/2025

Easter had another Knight Case Files character's birthday. This time, we celebrate the enigmatic Abend, whose impact to the world can be felt long after he departs it.

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Kaguya Project @kaguyaproject.bsky.social · 31/03/2025

Kingdom Calendar Year 575, on a sunny day, Wilhelm receives a (very) belated birthday cake and has a cheerful conversation with his friends, Topherf and Leon. Happy birthday, Wilhelm! And thank you to utino877 on Twitter for the beautiful illustration.

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Kaguya Project @kaguyaproject.bsky.social · 18/03/2025

This is Topherf, a gender-bending alchemist who changes her appearance as easily as changing an outfit. She's stylish and lively, and already very fond of Wilhelm. She thinks they've met before, but Wilhelm surely would've remembered meeting someone like her.

Topherf, a Lovely Alchemist.

Age: Late 20s appearance
Height: 155cm
Birthday: July / Cancer
Birthstone: Ruby
Likes: Sparkling things, tea, Eastern accessories.

"We've met before, do you remember?"

In this form, Topherf is a beautiful woman with glasses, dark purple curls, and an elegant satin gown with matching hat.

Topherf, a Lovely Alchemist.
(masculine form)

Age: Approximately 30 in appearance
Height: 183cm
Birthday: July / Cancer
Birthstone: Ruby
Likes: Sparkling things, tea, Eastern accessories.

"To tamper with the dead is to discard their dignity."

In this form, Topherf is a tall and elegant man with long lavender hair, and a well-styled and accessorised robe.

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Kaguya Project @kaguyaproject.bsky.social · 17/03/2025

Let's introduce the lead character of Knight Case Files, Wilhelm! He's a brand new member of the Royal Guard, still trying to find his place with them. He's also got some secrets of his own...👀

Wilhelm, Corpse Killer.
Age: 18
Height: 175cm
Birthday: March / Aries
Birthstone: Aquamarine
Likes: Sweets (because they are luxuries), peace, cheerful and kind people

"I'll protect you."

Wilhelm is a blonde young man dressed in a white uniform.

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Kaguya Project @kaguyaproject.bsky.social · 14/03/2025

Thanks to you, Knight Case Files has achieved over 777 wishlists on Steam! You may recognise these gentlemen if you've played the demo: the grandfather Abend in white, and his grandson Schatten in black. And if not, you can try the demo here: store.steampowered.com/app/2656440/...

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Kaguya Project @kaguyaproject.bsky.social · 05/03/2025

We're thrilled to reveal that we'll be bringing Knight Case Files, a gorgeous dark fantasy visual novel by HyoukanStudio, to English players! A demo is available now, so you can fall into a world of knights, necromancy, and a gender-bending alchemist. store.steampowered.com/app/2656440/...

store.steampowered.com

Knight Case Files on Steam

"In the Phoenix Kingdom, there is a man known as the Corpse Killer." Thwart a necromancer's scheme in this dark fantasy visual novel.

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