Yuisei helps you follow through with the people who matter. Import contacts, set intentions, track relationship health, remember the details, and prepare for meaningful conversations.
Intention-led workflows for the people you choose.
Your contacts, notes, and relationship history stay under your control.
Turn relationship context into useful prep and follow-through, within boundaries you control.
Agent connections
Bring the context you keep in Yuisei to the assistant you already trust—so every follow-through can feel more thoughtful, not more automated.
Ask your assistant for a quick briefing before you meet. It brings forward the details you already chose to remember, so you can be present instead of searching for context.
Ask your assistant
“What should I remember before seeing Maya?”
Maya starts her first week leading the community team on Monday. She was excited about the neighborhood garden project and you promised to send the volunteer link.
Let an assistant help you recall context before it can change anything.
Write access is a separate choice for every connection you create.
Turn off a named connection from Yuisei settings whenever you want.
Connect on your terms
Choose the assistant and relationship context that support your follow-through.
Yuisei
Built around intention, memory, and follow-through instead of feeds, ads, or professional networking theater.
Relationship Health
Yuisei turns interactions, intentions, and recent activity into a practical signal: who is thriving, who needs attention, and where your next follow-through matters.
FAQ
A quick bridge between the Supaku product page and Yuisei itself.
Build a private system that remembers with you and works with the assistant you already trust.