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Your Tokyo CMS is Choking on Japanese Characters Again

If you're managing a bilingual content team in Tokyo, you've hit the moment where WordPress multisite stops scaling.

We build headless CMS architectures for bilingual teams in Tokyo using Sanity, Contentful, and Storyblok — configured for CJK character encoding, vertical text fields, ruby annotation support, and JST-aware publish scheduling coordinated across LA and Tokyo working hours.

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Headless CMS Development

Headless CMS development decouples your content editing environment from your front-end delivery layer, giving Japanese editorial teams structured, schema-driven workflows instead of brittle WYSIWYG editors. We configure content models, field validation, and locale routing specifically for Japanese, English, and mixed CJK content. The result is a content platform your Tokyo editors can operate without developer intervention for every character-encoding edge case.

What is holding your current website back?

Common gaps we find in nearly every audit.

WordPress multisite mangles fullwidth punctuation and breaks ruby annotations every time a plugin updates.
Risk: Editorial teams spend hours manually correcting character rendering instead of publishing content, and errors slip through to production pages indexed by Google Japan.
Your bilingual CMS has no concept of JST scheduling, so Tokyo editors publish at midnight their time to hit a 9am LA content freeze.
Risk: Fatigue-driven publishing errors increase, and cross-office content sign-off becomes an async nightmare that delays campaign launches by days.
Content models built for English copy collapse when Japanese copywriters need vertical text blocks, mixed writing modes, or tategumi layout fields.
Risk: Editors work around missing fields by pasting raw HTML, breaking the structured content pipeline your front-end relies on for consistent rendering.

How We Build This Right

Every safeguard, built in from Day 1.

JIS X 0208 Character Set Coverage

CMS field schemas are validated against JIS X 0208 and Unicode CJK Unified Ideographs ranges so no production character falls outside the accepted encoding envelope.

Role-Based Content Permissions

Japanese and English editorial roles are separated at the content model level, preventing locale cross-contamination and meeting internal governance requirements for bilingual publishing teams.

Audit Log and Version History

Every content change is logged with editor identity, timestamp in both JST and UTC, and a diffed field snapshot, giving compliance and legal teams a clean review trail across time zones.

What We Build

Purpose-built features for your industry.

CJK-Native Field Configuration

We define content schemas with dedicated field types for Japanese copy including ruby annotation pairs, tategumi writing mode flags, and fullwidth character length validators that prevent truncation before content reaches the front end.

JST-Aware Publish Scheduling

Scheduled publishing rules are set in JST at the CMS level and translated server-side to UTC delivery, so Tokyo editors schedule in their own timezone without conversion errors or surprise off-hours publishes.

Locale-Scoped Content Workflows

English and Japanese content variants follow separate draft, review, and approval stages within the same document, keeping bilingual sign-off structured without duplicating entries or creating orphaned translations.

Front-End Agnostic API Delivery

Content is delivered via structured JSON over CDN-cached API endpoints compatible with Next.js and Astro, meaning your Tokyo and LA front-end teams pull from the same data source without environment-specific CMS clients.

Our Development Process

From discovery to launch. Quality at every step.

01

Content Audit and Schema Mapping

1 week

We inventory your existing content types, identify CJK encoding failures, and map a field schema that covers every Japanese and English content pattern your editorial team currently works around manually.

02

CMS Platform Configuration

2 weeks

We build out the validated schema in Sanity, Contentful, or Storyblok, configure locale routing, set up JST publish rules, and establish role-based permissions aligned to your Tokyo and LA team structure.

03

Front-End Integration and API Testing

1-2 weeks

We wire the CMS API to your Next.js or Astro front end, run character rendering tests across device and browser targets in Japan, and validate that vertical text and mixed writing modes render correctly at the delivery layer.

04

Editorial Handoff and Documentation

1 week

We run live walkthroughs with your Tokyo editorial team in Japanese, deliver field-level documentation covering CJK-specific constraints, and provide a two-week support window for questions after go-live.

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Frequently Asked Questions

No. Our studios are in London (HQ) and Los Angeles. We've shipped headless CMS projects for Tokyo-based clients entirely through remote delivery. Our LA team's working hours overlap with JST mornings -- typically 9:00-13:00 JST -- which gives us a solid daily sync window. The rest runs async: structured Slack channels, Loom walkthroughs, and bilingual documentation. Headless CMS work is architecture- and API-heavy, which maps well to remote collaboration. We won't pretend we're local, but we will be responsive and structured.
Our LA studio operates on Pacific Time, which gives us a 9:00-13:00 JST overlap window every weekday. We schedule standups, review sessions, and stakeholder calls in that window. Outside of it, we use async updates -- recorded demos, written briefs, and pull request reviews -- so your team in Tokyo never waits a full day for a response. Our London team adds a second overlap window in your late afternoon if needed.
Yes, and this is a bigger deal than most agencies realize. Japanese input via IME behaves differently from Latin typing -- composition events, character conversion, and string length all need specific handling. We build custom input components that respect IME composition, validate Japanese string lengths properly, and render preview text with correct CJK line-breaking rules. We've dealt with the gotchas: fields that break mid-composition, character counters that miscount multibyte strings, and preview panes that mangle vertical text. Your editors should feel like the CMS was built for Japanese, not adapted from an English template.
It depends on your team. Sanity gives you the most control -- its customizable studio lets us build deeply Japanese-native editing experiences with custom input components and live preview. Contentful works well for larger teams that want a more structured, permission-heavy workflow out of the box. Storyblok is strong when visual editing and drag-and-drop layout matter more than schema flexibility. We'll recommend based on your editorial team's size, technical comfort, and integration needs -- not our preferences.
Yes to both. WordPress migrations are straightforward -- we extract via WP REST API or direct database export, transform into typed content models, and import into your headless CMS. Movable Type is more common in Japan and less standardized, so we typically write custom extraction scripts that parse MT's export format and map fields to your new schema. In both cases, we handle Japanese-specific issues like encoding normalization, image path rewrites, and preserving HTML content blocks that use CJK-specific markup.
Most projects land between ¥1.8M and ¥30M depending on scope. A single-language content site with a clean migration might be ¥1.8M-¥5M. A multilingual commerce-connected CMS with custom editor workflows, multiple publishing channels, and a performance-optimized front end runs ¥8M-¥30M. We scope in detail after a paid discovery phase, so you get a fixed quote before the build starts -- no open-ended timesheets.
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