Kizuna Desktop — An 3D AI Companion That Lives With You

An AI desktop companion that grows with you.

English Support Available: Some screenshots and videos were captured using the Japanese version, but the application is fully available in both English and Japanese.

🌐 Official Website: https://kizuna-desktop.com/en

Kizuna Desktop is an 3D AI desktop companion that lives on your Windows desktop, watches over your daily activities, and talks to you proactively.

Unlike traditional desktop mascots or chatbots, Kizuna Desktop understands what you're doing on your PC and adapts its behavior accordingly. Whether you're working, watching streams, enjoying your favorite content, or simply relaxing, your companion reacts to the moment and grows closer to you over time.

✨ What Makes Kizuna Desktop Different?

🧠 Context-Aware AI Companion

Kizuna Desktop continuously monitors your activity state on your PC (with your permission).

It can recognize situations such as:

• Working and focusing
• Getting stuck or losing momentum
• Watching videos or browsing social media
• Taking a break away from your desk

Your companion changes how often it speaks, what it talks about, and how it supports you based on your current situation.

Unlike traditional AI chat apps, you don't need to start every conversation. Sometimes your companion starts one first.

💖 Build a Relationship Over Time

The more time you spend together, the stronger your bond becomes.

As your bond level increases:

• New dialogue and interactions unlock
• Your companion's attitude and relationship evolve
• Special requests and events appear
• Original story episodes are generated based on your shared experiences

Kizuna Desktop isn't just an assistant—it's a companion that remembers your journey.

🎭 Bring Your Own Character

• Full VRM support
• Compatible with VRoid and custom VRM avatars
• Facial expressions and animations react to AI emotions
• Dynamic gestures and playful interactions

Use your favorite character, VTuber avatar, or original creation.

🎮 Multiple Activity Modes

Your companion can adapt to different lifestyles:

Focus Mode

Gentle encouragement while working or studying.

Entertainment Mode

React to videos, streams, and casual browsing.

Oshikatsu Mode

Talk about your favorite characters, creators, idols, and fandoms.

Game Reaction Mode

Short reactions and observations based on what is happening on your screen.

🖥️ Designed for Everyday Desktop Use

• Click-through mode
• Smart transparency
• Adjustable size and position
• Always-on-desktop experience
• Doesn't get in the way of your workflow

Your companion stays present without becoming a distraction.

🌐 AI Features

• Powered by Google Gemini
• Optional screen understanding (Vision)
• Optional webcam awareness
• Voice interaction support
• Japanese and English UI

Privacy controls allow visual features to be disabled at any time.

💻 System Requirements

• Windows 10 / 11 (64-bit)
• Internet connection required for cloud AI features

🚧 Beta Version

Kizuna Desktop is currently in active development.

We're continuously improving AI behavior, relationship systems, activity modes, and customization features based on community feedback.

Thank you for joining us on this journey.

🔗 Links

🌐 Official Website https://kizuna-desktop.com/en

🐦 X (Twitter) https://x.com/HeroWorks_dev

📺 YouTube https://www.youtube.com/channel/UC6jCNh1mFsRWNfGdMKUyQnQ

Follow development updates, watch feature showcases, and learn more about Kizuna Desktop through our official channels.