Next-Gen Web Agency
In 24 Hours, Ideal to Reality.
Ultra-fast, high-performance web development for businesses that can't afford to wait.
Sigma Speed Differentiator
Why OS Agency? We deliver performance that scales with your business speed.
Speed
Launch in 24 hours, not 2 months. Move at the speed of your vision.
Performance
Built for 100/100 Lighthouse scores. Ultimate loading speed and SEO ranking.
Customization
Keystatic CMS integration. Update content as easily as a social media post.
Choose Your Plan
Sigma Speed Differentiator: Performance that scales.
Startup LP
Initial Cost
¥150,000
Monthly Maintenance Fee
¥10,000/ mo
- Single Page Design
- Mobile Optimization
- Form Integration
Most Popular
Business Standard
Initial Cost
¥350,000
Monthly Maintenance Fee
¥20,000/ mo
- Up to 5 Pages
- CMS Integration
- Custom SEO Strategy
- Premium Support
Enterprise Custom
Initial Cost
Custom
Monthly Maintenance Fee
¥30,000/ mo
- Unlimited Pages
- API & DB Integrations
- High-Availability Hosting
More than just a website.
Automate your business operations through our add-on modules.
Popular
Line-based Expense Management
Submit and track expenses directly via LINE. Automated OCR and G-Sheets sync.
GCal Sync Booking
Real-time scheduling system linked with Google Calendar.
