Using AI to create a world
where we can better facePeople
.
Three businesses to support
our clients' use of AI.
KAGUYA operates three businesses: in-house product development, custom development, and a custom SaaS business. At their core is our own proprietary AI technology foundation, “KAGUYA AI Components”. This in-house technology is not only the foundation of our custom SaaS, but also accelerates custom development and powers the launch of our own products. Built on solid proprietary technology, we support each client's adoption of AI.
Our Track Record
We are “customer zero.”
We build our products and use them ourselves.
KAGUYA's philosophy is to be “customer zero.” We use “V-Talk” for our own hiring and “Persona Voice” for our own marketing. We build only what we genuinely believe is good, use it ourselves, and bring it to market ourselves. The technology and experience refined through this hands-on use then flow into easy-to-use custom SaaS and custom development that truly gets used in the field.
Persona VoiceAvailable for both Marketing and HR
Offered in two forms: “Persona Voice” for marketing strategy and “Persona Voice for HR” for hiring strategy. We deliver conversational AI personas generated from data, optimized for each target.
- Insight extraction from customer data & market research
- Generation of AI Personas available for dialogue anytime
- High-speed mass production of resonant creatives
Related tech — KAGUYA AI Components
V-TalkAvailable for both HR and School
Offered in two forms: “V-Talk (HR)” for recruiting and “V-Talk for School” for school admissions outreach. We optimize the video × chat experience for each target.
- Seamless video × chat experience
- Real-time capture of intent
- Maximization of applications via company website
Related tech — KAGUYA AI Components
KAGUYA AI Components
— the custom SaaS born from them.
“KAGUYA AI Components” is a suite of reusable AI technology blocks we developed and accumulated ourselves. Custom SaaS is not only built by combining these components—this same technology foundation also smooths custom development and powers the launch of our own products. This in-house technology, “KAGUYA AI Components,” supports the core of every business.
Composable KAGUYA AI Components
“KAGUYA AI Components” is a suite of reusable technology blocks refined through our implementations. Depending on how you combine them, you can build SaaS optimized for your operations.
Combine them to build SaaS like these
Depending on how you combine components, you can build diverse SaaS optimized for any industry or operation.
Recruiting Support SaaS
HR / RecruitingMatches job postings with candidate data and auto-generates compelling scout messages, supporting everything through to chat with candidates.
- Automate from application to interview scheduling, cutting hiring effort
- Deliver scout messages that resonate with each candidate
Knowledge Utilization SaaS
Internal DX / Knowledge sharingCross-searches internal documents and answers automatically with citations, automating everything from inquiry handling to report generation.
- Drastically reduce inquiry-handling effort
- Instantly surface knowledge scattered across the company
Customer Analytics SaaS
MarketingPredictively analyzes customer data and generates AI personas, extracting multimodal insights including voice and images.
- Accelerate data-driven decision-making
- Deepen customer understanding from multiple angles
Customer Support SaaS
CS / InquiriesProvides 24/7 automated responses grounded in FAQs and manuals; agents autonomously handle complex inquiries and hand off smoothly to human support.
- Automate first response and standardize response quality
- Enable 24/7/365 inquiry handling
Sales Enablement SaaS
SalesAnalyzes and summarizes sales-call audio and generates optimal proposals grounded in past cases, supporting everything from minutes to next-action suggestions.
- Improve quality and speed from proposal prep to follow-up
- Automate minutes and next actions
Data Utilization SaaS
Data platformAutomatically collects needed data from the web and APIs, then structures and analyzes it—usable as a foundation for predictive models and semantic search.
- Turn scattered data into practical assets
- Build a data foundation that underpins prediction and search accuracy
The custom SaaS business
circulates our three businesses and amplifies our strengths.
Our in-house KAGUYA AI Components, at the core of the custom SaaS business, accelerate both in-house product development and custom development. The three businesses form a virtuous cycle that elevates one another and keeps amplifying KAGUYA's strengths.
- ・Persona Voice
- ・V-Talk
- ・New products
- ・Operational efficiency
- ・AI enhancement of existing services
- ・New business development
We embed in our clients' field,
and implement AI for real.
From building internal data-utilization platforms to operation-specific AI agents and product development for new businesses, we build fully custom solutions tailored to your needs. Working back from the business question to solve, we design the optimal solution, and through AI-driven development we deliver implementations far faster and higher in quality than conventional approaches. We support you all the way through implementation into your environment, accelerating your company's AX (AI transformation).
Operational Efficiency AI
Custom systems that automate and streamline routine internal tasks across back office, sales, and customer support. We implement RAG and operational agents that leverage internal knowledge to dramatically boost employee productivity.
Examples
- —Cross-knowledge RAG system
- —Auto-generation agent for sales decks & proposals
- —Meeting-minutes analysis pipeline (Whisper + LLM)
- —Data-analysis AI for management decisions
- —AI agent for customer support
AI Enhancement of Existing Services
Development that embeds AI into services already in operation to evolve the experience. From improving matching accuracy to introducing recommendation algorithms and enriching search, we partner with you to extend AI features that maximize your existing assets.
Examples
- —AI enhancement of matching algorithms
- —Semantic search using vector search
- —Building & tuning recommendation engines
- —Adding a natural-language interface
- —Adding an AI analysis layer to existing DBs
New Business Development Support
End-to-end support for launching AI-centered new businesses—from strategy to product development to post-launch operations. From the hypothesis-validation phase, KAGUYA's specialists join your business team.
Examples
- —PoC & MVP development for new AI products
- —Hypothesis validation (incl. user-interview design)
- —AI-assisted competitor & market research
- —Hands-on support through product launch
- —Multilingual design for global expansion
Five steps, into your field.
Hearing & Problem Definition
Working back from the business question to solve, we identify—with a consulting mindset—the essence that AI should address.
Hypothesis & Solution Design
Drawing on our experience launching our own products, we design the optimal approach, weighing feasibility and cost-effectiveness.
Rapid Implementation via AI-Driven Development
With solid engineering capability, we build high-quality systems far faster than conventional approaches.
Implementation & Integration into Your Environment
We see implementation through—integrating into your existing systems and workflows.
Operations Support & Continuous Improvement
Leveraging our product-operation experience, we help it grow into something that keeps being used after delivery.
Hearing & Problem Definition
Working back from the business question to solve, we identify—with a consulting mindset—the essence that AI should address.
Hypothesis & Solution Design
Drawing on our experience launching our own products, we design the optimal approach, weighing feasibility and cost-effectiveness.
Rapid Implementation via AI-Driven Development
With solid engineering capability, we build high-quality systems far faster than conventional approaches.
Implementation & Integration into Your Environment
We see implementation through—integrating into your existing systems and workflows.
Operations Support & Continuous Improvement
Leveraging our product-operation experience, we help it grow into something that keeps being used after delivery.
About Us
Representative Director CEO
Kana Okada
Graduated from the University of Tokyo, Faculty of Letters, Department of Sociology. Joined Google as a new graduate and conducted marketing support for over 300 companies ranging from SMEs to large enterprises. After obtaining an MBA at INSEAD in France, engaged in strategy and marketing for new businesses at Amazon before assuming the position of Representative Director at KAGUYA.
Team Members
Tech Lead
Shotaro Kadoya
Ph.D. in Engineering from the Graduate School of Engineering, the University of Tokyo. After serving as a research assistant professor there, he began his career as an engineer. He leads the design and development of RAG systems for products such as “V-Talk.”
Head of Business
Ryo Kakurai
After an internship at Uber, he joined ByteDance Japan as a new graduate. Following work on TikTok's video content strategy and marketing for new features, he led marketing at the Japan office of a Singapore-based company.
Technical Advisor
Technical Advisor
Soichi Sumi
Completed a master's in Computer Science at Osaka University. After product development at Recruit, he joined the fintech startup Ginco as a founding engineer, served as tech lead, and headed the platform division—achieving a 40% reduction in system costs (¥120M/year) and roughly 80% performance gains. In February 2025 he founded LeapInsight Inc., providing generative-AI-powered business automation and software engineering services.
News
KAGUYA Latest Media Coverage
KAGUYA selected for the Summer 2026 Batch accelerator program (chosen from over 260 companies)
Creating an era of engaging with people through AI — KAGUYA's Kana Okada on the future of Japanese enterprises
Co-creation bootcamp with KAGUYA to accelerate AI-driven development
How Kyujin Box grew search traffic with original content and the story behind their growth
AI adoption in recruitment surges. AI agent launched to support end-to-end recruitment strategy.
AI adoption in recruitment surges. AI agent launched to support end-to-end recruitment strategy.
Persona Voice for HR launched in collaboration with HR Doc
AI adoption in recruitment surges. AI agent launched to support end-to-end recruitment strategy.
AI adoption in recruitment surges. AI agent launched to support end-to-end recruitment strategy.
Zero opportunity loss for 27 graduates & mid-career hiring. V-Talk launches with vertical video × conversational AI.
KAGUYA launches V-Talk to prevent hiring mismatches with vertical video × conversational AI
V-Talk launches - Preventing hiring mismatches with vertical video × conversational AI
Zero opportunity loss for 27 graduates & mid-career hiring. V-Talk launches with vertical video × conversational AI.
New service V-Talk resolves job seeker mismatches with AI and video technology
Zero opportunity loss for 27 graduates & mid-career hiring. V-Talk launches with vertical video × conversational AI.
Zero opportunity loss for 27 graduates & mid-career hiring. V-Talk launches with vertical video × conversational AI.
KAGUYA: Zero opportunity loss for 27 graduates & mid-career hiring. V-Talk launches.
Persona Voice for HR PR featured in multiple media outlets
V-Talk featured in media
Contact
If you have any inquiries or questions about projects, please feel free to contact us using the form below.
会社概要
- 会社名
- KAGUYA株式会社
- 代表取締役
- 岡田 夏奈
- 所在地
- 〒150-0002 東京都渋谷区渋谷３丁目２５番１４号 渡辺コーポ３０１
