Engagement / Pricing guide

Start sustainably with the scope you need.

Prices are tax-inclusive estimates. External service fees, license fees, server costs, and changes after formal requirements are confirmed separately.

Reference / 01

Services and pricing

Indicative scope and cost

development

Commissioned System and Web App Development

  1. 04

    AI Operational Improvement Starter Package

    A 90-minute interview, workflow review, 3 AI candidates, a simple prototype of 1 candidate, cost-effectiveness estimate, and concise AI usage rules. The estimated duration is 2–3 weeks.

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    Approx. ¥150,000

  2. 05

    Production AI and Business System Implementation

    Production build after a PoC, existing-system integration, permissions, approvals, audit logs, testing, launch, and operational handover. Estimated according to requirements.

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    From ¥500,000

  3. 06

    Small-Scale Automation and Operational Assistance

    Small-scale automation of existing data entry, aggregation, notifications, and checking work.

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    From ¥300,000

  4. 07

    Internal Business Tool

    A small- to medium-sized tool with an admin screen, forms, lists, CSV export, permissions, and related features.

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    From ¥500,000

  5. 08

    Medium-Sized Web App

    A Web app with multiple users, membership features, approval flows, and external integrations.

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    From ¥1,500,000

  6. 09

    Design and Creative

    Typical guidance: logos ¥50,000–¥150,000; flyers and banners ¥20,000–¥120,000; brand design and Web integration from ¥100,000.

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    From ¥20,000

  7. 10

    Inquiry AI Chat

    Add an inquiry AI chat to a static or service site, including answer scope, rate limits, Origin checks, and safe link rendering.

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    From ¥80,000

  8. 11

    Blog Comment Feature

    Use Cloudflare Pages Functions, D1, and Turnstile to provide posting, storage, spam prevention, and deletion operations without an external comment service.

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    From ¥80,000

  9. 12

    CMS Editing Interface

    Add a Sveltia CMS admin interface for updating the blog, fixed pages, announcements, and settings from a browser.

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    From ¥50,000

  10. 13

    Blog and Article Foundation

    Build the foundation for ongoing publishing, including article lists, detail pages, tags, related articles, RSS, and search journeys.

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    From ¥50,000

  11. 14

    Multilingual Blog Operations

    Establish multilingual blog operations covering a Japanese source, translation PRs, hreflang, sitemap, and RSS.

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    From ¥80,000

  12. 15

    SEO and Structured Data

    Organize information communicated to search engines, including OGP, JSON-LD, sitemap, RSS, and canonical.

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    From ¥50,000

  13. 17

    Page-Speed Improvement

    Review images, CSS, fonts, lazy loading, and measurements to improve Core Web Vitals.

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    From ¥50,000

  14. 18

    Accessibility Improvement

    Review contrast, aria attributes, focus, form validation, and related areas, and make corrections toward WCAG AA.

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    From ¥50,000

  15. 19

    Security Headers/CSP

    Organize Cloudflare Pages _headers, CSP, and delivery settings around the admin interface to improve launch security.

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    From ¥30,000

  16. 20

    CTA and Form Integration

    Carry the category, subject, and context from a service CTA into the contact form to improve the consultation journey.

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    From ¥30,000

  17. 21

    Integrated Systems and Core-System Integration

    An operational foundation connecting multiple departments and existing systems, designed for phased rollout.

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    From ¥2,500,000

it-advisor

IT Advisor Engineer

  1. 01

    IT Advisory Engineer — Light

    Includes 1–2 consultations per month, AI and IT tool selection, initial setup, and small-scale launch support for up to 1 concurrent project. Work-hour limits and additional fees are stated before the contract.

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    From ¥30,000/month

  2. 02

    IT Advisory Engineer — Standard

    Within the consultation and work-hour limits agreed in the contract: deployment, debugging and testing, status reports, and reviews of usage and improvement candidates. 24-hour monitoring and immediate incident response are not included.

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    From ¥100,000/month

  3. 03

    One-Time Deployment Support

    For 1 existing Web app in 1 environment: recommended environment selection, initial domain, SSL, VPS or cloud setup, launch, operation checks, and handover. Code changes, migration, CI/CD, monitoring and backup design, and ongoing operations are estimated separately.

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    From ¥50,000

  4. 22

    Maintenance and Improvement

    Minor changes, consultation, monitoring, improvement proposals, priority handling for additional development, and related support.

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    From ¥30,000/month

  5. 23

    Requirements and Technical Consultation

    Also available for pre-development workflow review, existing-system investigation, and architecture review.

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    Custom estimate