Story & Lore

Story & Lore

Unpack the Showa 66 timeline — Japan-bought America, Chigusa Choko's resurrection, Aya's abduction, and the B-movie 80s pop culture world of Neo Yokohama.

Showa 66
Era
3
Confirmed Leads
B-Movie
Tone

Introduction

The story of Showa American Story unfolds in an alternate 1991 — the Showa 66 era — where Japan's bubble economy never burst and its capital bought up most of the United States. Neon-kitsch cultural colonization has repainted the American landscape: Hollywood is now Neo Yokohama, and 80s pop culture pulses through every roadside diner and arcade. Into this world walks Chigusa Choko, a teenage stuntwoman traveling with her sister Aya to the audition of a lifetime — until mysterious men assassinate Choko on the road and abduct Aya. She wakes up resurrected from the grave in a zombie-ravaged America, and the campaign becomes a road trip of revenge: fight across city sandboxes, gather eccentric survivors, and uncover who ordered the hit and why. This category digs into the timeline, the characters, and the B-movie references woven through it all.

Showa 66 Story Pillars

PillarWhat It CoversWhy It Matters
SettingShowa 66: America bought out by Japanese capitalThe alternate-history premise that drives every design choice
ProtagonistChoko, stuntwoman murdered en route to an auditionHer resurrection and revenge anchor the entire campaign
MysteryAya's abduction and the hit's hidden ordererThe road trip's destination and emotional stakes
ToneB-movie love letter to 80s pop cultureDark humor and earnest drama in deliberate tension

Story Pillars

S

The Showa 66 Timeline

The alternate history where Japan's bubble never burst — and America was bought.

Divergence PointThe Japanese bubble economy keeps expanding into the 1990s instead of collapsing
World ResultEconomic colonization repaints America: Neo Yokohama replaces Hollywood as the film capital
Cultural TextureNeon-kitsch fusion of Showa nostalgia and 80s Americana in every roadside detail
Story RoleThe premise that explains the world's look, sound, and satirical tone
S

Chigusa Choko

Protagonist

Teenage stuntwoman, murdered on the road, resurrected for revenge.

BackgroundA stuntwoman heading to a Neo Yokohama audition with her sister Aya
The IncidentAssassinated by mysterious men en route; wakes up resurrected in a dead America
VoiceYoko Hikasa in the Japanese cast — a headline casting announcement
Story RoleHer search for Aya and the hit's orderer drives the entire campaign
A

Aya

Choko's sister and travel companion — the abduction at the story's heart.

RoleTravel companion in the opening act, abducted during the ambush
MysteryHer fate and location are the road trip's unanswered driving question
StakesThe personal half of the plot — the reason the revenge journey continues
Story RoleConfirmed by trailers only; her fate waits for the game itself
A

The Shogun

Antagonist

Caped, shield-wielding boss villain — the face of the 2024 reveal.

SignatureA comic-book-style shield paired with floating mobility
MemorabiliaThe black giraffe mount from the 2024 trailer — instant icon
DebutOfficial Trailer 2024, which won UCG Game Awards recognition
Story RolePresumably tied to the hit on Choko — officially unconfirmed speculation His theatrical design reads as deliberate B-movie iconography, and his connection to the hit on Choko is the story's most-watched open question — treat any theory as speculation until the game confirms it.
B

The Catastrophe

Mystery

The unexplained event that filled America with the undead.

ConfirmedA mysterious catastrophe shattered social order and unleashed zombies and monsters
ConnectedChoko's resurrection is explicitly part of the same mystery
TheoriesCause officially unrevealed — this wiki marks all speculation as such
Story RoleThe cosmic half of the plot, braided with the personal revenge story

Core Mechanics

Showa 66's alternate history works through a single elegant divergence: the Japanese bubble never bursts, so by 1991 economic colonization has quietly succeeded where war never could. American landmarks carry Japanese names and ownership; the entertainment industry has migrated to Neo Yokohama; and the cultural texture is a deliberate collision of Showa-era nostalgia and Americana kitsch. The narrative structure mirrors the gameplay: each city sandbox delivers a self-contained chapter of the road trip, with side characters — the wasteland's eccentric survivors — doling out story fragments that reward thorough exploration. The zombie catastrophe itself is the story's central mystery: official material calls it a catastrophe that shattered social order, and the resurrection of Choko is explicitly tied to it. Expect the plot to braid the personal (Aya's fate) with the cosmic (why the dead walk) as cities pass.

Advantages

The premise gives Showa American Story a narrative identity almost no other zombie game claims: the setting is the hook, and it is everywhere. Because the cultural colonization is total — signage, music, film industry, fashion — story delivery never depends on cutscenes alone; the world itself narrates the Showa 66 divergence to players who explore it. Choko is a strong protagonist anchor: a stuntwoman's physicality justifies the acrobatic combat, and her murder-and-resurrection opening gives the revenge plot immediate stakes. The B-movie tone is a structural advantage too — it licenses the game's absurdity (a shield-wielding Shogun boss, a black giraffe mount) while the sister storyline keeps the emotional core earnest. Media coverage consistently treats the setting as the game's first talking point, and this category collects that analysis in one place.

Challenges

Pre-launch story analysis runs on limited official material: trailers, the store description, and press interviews. The full plot — the catastrophe's cause, the hit's orderer, Aya's fate, and whether multiple endings exist — is officially unrevealed, so this category clearly separates confirmed fact from reasonable inference and marks speculation as such. The tone blend is also a risk factor worth naming: B-movie humor and a missing-sister thriller can grate against each other if the writing does not calibrate the switch, and some preview commentary has flagged exactly that tension. Finally, the alternate-history framing invites historical sensitivity debates — the game plays the Japan-buys-America scenario for absurdist satire, and players expecting pointed political commentary or total historical coherence may find the tone lighter than the premise suggests.

Frequently Asked Questions

What is the Showa 66 setting?+
Showa 66 is the game's alternate 1991, dated by the Japanese imperial calendar that was still in use during the real Showa era. The divergence: Japan's economic bubble never burst, and decades of expansion ended with Japanese capital owning much of the United States. The result is a satirical cultural-colonization landscape — Hollywood renamed Neo Yokohama, American iconography wrapped in Japanese corporate and pop culture, and an 80s that never ended. It is a deliberately absurd B-movie premise, and every system in the game, from the soundtrack's kayokyoku flavor to the roadside signage, sells it.
Who is Chigusa Choko?+
Chigusa Choko is the protagonist: a teenage stuntwoman traveling with her younger sister Aya to a movie audition in Neo Yokohama, the story's renamed Hollywood. Mysterious men ambush the sisters on the road — Choko is assassinated and Aya is abducted. Choko then wakes up resurrected from the dead, and the game follows her fight across a zombie-ravaged America to find her sister and the person who ordered the hit. Her stuntwoman background is the in-fiction justification for the acrobatic, counter-heavy combat style, and official material confirms she is voiced by Yoko Hikasa in Japanese. Note: the Steam store page spells her name 'Chigusa Choko', and this wiki uses that spelling throughout.
What happened to Aya?+
Official material establishes only the outline: Aya is Choko's sister and travel companion, and she is abducted by the mysterious men during the ambush that opens the game. Her fate — and her location — is the road trip's driving question, the personal stake that keeps Choko fighting westward through the catastrophe. The trailers deliberately withhold answers, framing her abduction as the mystery that powers the revenge plot. Any detail beyond the abduction itself is speculation until the game's release, and this wiki keeps its story coverage strictly to confirmed material.
Why are there zombies in Showa American Story?+
Official material describes a mysterious catastrophe that shattered social order and left America overrun by zombies, monsters, and hostile survivors — but not its cause. The catastrophe is the story's central sci-fi mystery, and Choko's own resurrection from the grave is explicitly part of it: whatever raised her predates or accompanies the outbreak. The trailers treat the undead as both horror backdrop and B-movie set dressing, consistent with the game's tone. Expect the campaign to connect the catastrophe, the resurrection, and the assassination plot — the official story summary braids all three — but confirmed answers wait for launch.

Quick Tips

💡

Treat Neo Yokohama signage as storytelling. The renamed Hollywood, Japanese corporate branding, and Showa-era music are the alternate history told through environment — exploring slowly reads the world's premise. The alternate history is told through environment more than exposition, and players who read the world's signage and soundtrack get the premise without a single cutscene.

💡

Keep the two mysteries separate in your head: the personal plot (who ordered the hit, where is Aya) and the cosmic plot (what caused the catastrophe, why did Choko rise). The campaign braids them, but conflating them muddies trailer clues. The trailers braid them deliberately, and keeping them separate is the difference between tracking clues and chasing red herrings when new footage drops.

💡

Watch the 2024 and gamescom 2026 trailers with the tone in mind — the Shogun's comic-book shield and giraffe mount are B-movie signals, not plot holes. The game intends its absurdity. The Shogun's comic-book shield and theatrical mount are deliberate B-movie signals — the game is telling you exactly what register it plays in, and taking it at face value reads the story correctly.

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Side characters matter for lore. The eccentric survivors handing out side quests are the game's chorus — their stories contextualize the catastrophe in ways main missions likely will not. The eccentric survivors handing out side quests are the game's chorus, and their stories contextualize the catastrophe in ways the main missions never do.

💡

Check the Media & Trailers category for the theme song context: 'Sorega Daiji' is a real kayokyoku classic, and its use as the debut teaser's soundtrack is the tone statement of the whole project. Using a real kayokyoku classic as the debut teaser's soundtrack was the project's tone statement, and the Media & Trailers category covers that context in full.

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