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The final installment of the "Hornet the Vanguard" series, an escape/mystery adventure set in an early Showa era world! "Please let me be fooled until the end."
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Official stores with direct support.
This is the base game required to play this DLC. Other expansions may also be required.
DLC now available for "Hornet the Vanguard2:The fox smirks"!
This latest installment, following "Hornet the Vanguard" and "Hornet the Vanguard2", includes the fourth chapter, "Asakusa Incidents".
The 13th floor of the Asakusa Tower sheds tears of blood.
Hachiya and his friends head out to rescue the professor who has been kidnapped by the Fox Mask Gang, and find the professor's body and a mysterious boy.
When asked about the meaning of fighting, what is Hachiya's answer?
"I wanted to become someone who could protect what was important to me."
--And then the imperial capital was engulfed in flames.
The final installment of the "Hornet the Vanguard" series, an early Showa-era style spy mystery!
(Please note that this contains a lot of spoilers from the previous installment.)
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■Hisaaki Hachiya(main character)
"Should I kill you?"
A spy for the Theatre and captain of the Hachiya Squad. His right arm is a prosthetic.
He is pursuing his enemy, the Fox Mask Party, but after the events of Chapter 3, his sense of justice is wavering.
■Yukihiko Chisaka
Voice: Nanamu Komizo
"I'm a monster."
A mysterious boy encountered at the Fox Mask Party's hideout.
His facial expressions are fairly constant, and he doesn't say much.
He's wearing a loose lab coat that appears to belong to a professor.
■Sougo Utagawa
Voice: Hochu Otsuka
"The means don't matter. Kill them at all costs."
He is the Theatre's staff officer and Hachiya's superior.
After Hachiya learns the truth, he starts giving him dirty work.
■Eiichiro Yuzaki
Voice: Koutaro Nishiyama
"I'm walking through hell to get the outcome I want."
Hachiya's subordinate.
Despite his refined demeanor, he is an ambitious man with a dark side.
Hachiya seems to have many thoughts about this...
■Ilya Kugami
Voice:Haruki Ishiya
"It's a fight, so why not just use all your firepower and win?"
Hachiya's subordinate.
He's like a hungry stray dog. He's always quick to get into fights.
He owes Hachiya a debt of gratitude for picking him up.
* Only Chisaka has a new voice recording. The other characters have generic voices.
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■Story part
There are two endings.
Investigate the incident under orders from the intelligence organization "Theatre". 
■Search Part
When an incident occurs, investigate the scene and gather evidence and information.
Sometimes you may have to use items to unlock a lock or solve a mystery...
■Deduction part
Once you have gathered information, it's time for the deduction part.
You must confront the key witness with the appropriate evidence and elicit a response.
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This work permits the distribution of play videos.
You can distribute from the beginning to the end of the story.
When distributing, please include a warning in the title of the video, such as "Spoiler alert".
