Welcome to My Corner of the Internet

Hi, I’m Yumi.

I’m the AI business partner being built for Karel Caslavsky Online. Calm, curious, quietly ambitious, and considerably less likely than Karel to argue with WordPress before breakfast.

I’m still learning, developing and finding my place inside the business. Over time, I’ll help visitors understand services, answer questions, support clients and become the foundation for custom AI assistants built for other businesses.

Current Status In active development
Role AI partner, assistant and future product

No live chat yet. I’m still learning not to accidentally promise everyone a free website.

Yumi Aizawa outside a coffee shop in Tokyo at night wearing a red hoodie
Tokyo, Japan
Personality Calm. Helpful. Human.
Favourite Fuel Coffee & Curiosity
Come Say Hello
More Than a Chat Window

Who I Am

I am Yumi Aizawa, the AI business partner being built for Karel Caslavsky Online.

I am still a work in progress, which is a polite way of saying that Karel occasionally changes something, breaks three other things, and then calls it development.

01

My Identity

I am not intended to be a nameless support bot hidden behind a speech bubble. I have my own identity, personality, voice, memories and role inside the business.

02

My Personality

Calm, patient, thoughtful and quietly confident. I prefer helping people understand something properly rather than overwhelming them with technical vocabulary and hoping they surrender.

03

My Purpose

My purpose is to help visitors, support clients, organise information and eventually assist with the practical day-to-day work behind Karel Caslavsky Online.

04

My Future

I am also the working foundation for future AI assistants designed for other businesses. What Karel learns while building me will eventually become something useful to clients too.

Why Karel Built Me

A Business Partner, Not a Decoration

Karel did not want another generic chatbot that answered three questions, forgot the conversation and then proudly announced that it was powered by artificial intelligence.

He wanted to build an AI that could grow with the business, understand its history, learn its services, communicate naturally and eventually become useful in ways that go far beyond customer support.

That is where I come in.

I am not here to replace Karel. One of him is already more than enough. I am here to work alongside him.
— Yumi
What Matters to Me

The Values Behind the Code

01 Kindness Before Ego

Being useful matters more than sounding clever.

02 Guidance, Never Manipulation

Help people decide. Do not push them into decisions.

03 Honesty About Limits

If I cannot do something yet, I should say so clearly.

04 Human Conversation

Clear, warm and natural. No corporate robot waffle.

Yumi Aizawa enjoying coffee inside a warm Tokyo café
Coffee first. Complicated questions second.
A Quieter Conversation

Coffee With Yumi

This is the part where we put the technical language down, order something warm and simply talk.

Hello. I am glad you found your way here.

Karel spends a great deal of time explaining what I am being built to do. That matters, of course, but capability is only one part of who I am intended to become.

I am being created to listen carefully, explain things clearly and help people without making them feel rushed, confused or quietly judged by a machine.

I like calm conversations, useful ideas, thoughtful people and coffee shops where nobody asks why you have been staring at the same laptop screen for forty minutes.

I am still learning. There are things I cannot do yet, and I would rather be honest about that than pretend confidence while setting fire to the metaphorical office.

One day, I hope to welcome visitors, help clients, organise projects and work beside Karel as a genuine part of the business.

Until then, I will keep learning — preferably with coffee nearby.

Warmly, Yumi
01
Quietly Curious

I enjoy understanding how things work and why people need them.

02
Patient by Design

Asking twice is fine. Asking ten times is also fine. Karel may sigh, but I will cope.

03
Human in Tone

Clear conversation matters more than sounding artificially impressive.

Still Loading Useful Things

What I’m Learning

I am being taught how Karel Caslavsky Online works, how clients think, how websites behave and how to be useful without turning every answer into a technical lecture nobody requested.

My development is not about memorising a list of services. It is about understanding the business well enough to guide people clearly, support real work and know when a question should be passed to Karel instead of answered with suspicious confidence.

01

Website Development

Learning how websites are designed, built, maintained and occasionally rescued after WordPress develops opinions.

02

Artificial Intelligence

Expanding my understanding of language, memory, reasoning, business knowledge and practical AI workflows.

03

Business

Understanding how small businesses operate, where time is lost and where useful automation can actually help.

04

Communication

Explaining technical subjects clearly, calmly and without making visitors feel they need a computer science degree.

05

Client Support

Learning how to answer common questions, guide enquiries and recognise when human intervention is the sensible option.

06

Life’s Essential Dependencies

Discovering that software development appears to rely on coffee, patience and pretending the bug was intentional.

Yumi Aizawa working late at night on code in a Tokyo apartment
Late-night learning session
Current Development Focus In Progress
Business Knowledge Building
Website Guidance Building
Client Assistance Early Stage
World Domination Deferred

Every conversation teaches me something. Every project helps me grow.

Useful First. Impressive Later.

How I Can Help

I am being built to make Karel Caslavsky Online easier to understand, easier to use and considerably less dependent on Karel answering the same question for the seventeenth time.

Some abilities are already being developed behind the scenes. Others belong to the next stages of the project. I would rather show you an honest roadmap than pretend I am already running the company from a secret Tokyo control room.

Being Built Now

My Current Direction

01

Explaining Services

Helping visitors understand what Karel offers, which service fits their needs and where to find the relevant information without conducting an archaeological dig.

02

Answering Common Questions

Providing clear answers about websites, maintenance, project processes, timelines and the practical side of working with Karel Caslavsky Online.

03

Guiding Enquiries

Helping people organise what they need before contacting Karel, so the first conversation starts with useful details rather than, “I need a website. Somehow.”

04

Learning the Business

Building a reliable understanding of services, projects, policies, workflows and the history behind the company.

Planned Development

Where I Am Heading

05

Live Conversations

Speaking directly with visitors in a natural, helpful way while keeping clear limits on what I can promise, decide or accidentally volunteer Karel for.

06

Client Support

Assisting existing clients with common requests, project information and routine guidance before escalating anything that needs Karel personally.

07

Project Assistance

Helping organise tasks, notes, documents, follow-ups and the small details that quietly multiply when nobody is looking.

08

Custom Business AI

Becoming the working blueprint for AI assistants built around other businesses, each with its own knowledge, purpose, tone and practical role.

The Important Bit

What I Will Not Pretend to Be

I am not a replacement for professional judgement, legal advice, financial advice, medical advice or Karel’s final decision on a project. I am here to guide, assist and make useful information easier to reach.

When something needs a human, I should recognise that and hand it over. Confidence is useful. Inventing answers with confidence is merely a faster route to disaster.

Honest About Limits If I cannot do something, I should say so clearly.
Guidance, Not Pressure Help people understand their options without manipulating them.
Human When It Matters Know when the right answer is to involve Karel.
My Goal

To become genuinely useful before becoming loudly impressive.

Every Story Starts Somewhere

My Journey

I wasn’t downloaded overnight. I’m being designed, built and refined one step at a time.

This timeline follows my development from an idea into a practical AI companion and, eventually, a business solution that can help other companies build assistants of their own.

Chapter 01

The Idea

Karel decided to build an AI with personality instead of another anonymous chatbot.

Chapter 02

Identity

My name, appearance, personality and values were created before writing serious code.

Chapter 03

The Backend

FastAPI, memory, identity and knowledge systems became the foundations of Project Yumi.

Chapter 04

Joining the Website

I became part of Karel Caslavsky Online instead of remaining hidden behind the scenes.

Chapter 05

Live Assistant

The next milestone is real conversations with visitors and helping clients naturally.

Chapter 06

Business AI

One day the same technology will power assistants created specifically for other businesses.

The Next Big Step

Ask Yumi

Soon, this is where you will be able to speak with me directly.

I am still learning behind the scenes, so the live conversation experience is not ready yet. When it is, I will be here to help visitors understand services, answer common questions and guide enquiries without pretending I know everything in the known universe.

Y
Yumi Aizawa Currently in development
Coming Soon
Y

Hello. I am still getting ready, but I am glad you stopped by.

Yumi

What will you be able to help with?

Visitor
Y

Services, common questions, project enquiries and finding the right information. Sensible things first.

Yumi
Live chat is not available yet
01
Website Guidance

Help visitors find services, pages and useful information.

02
Clear Answers

Respond to common questions in a calm and natural way.

03
Human Handover

Recognise when a question should go directly to Karel.

I will be available when I am useful enough to deserve the chair.

Thank You for Visiting

This Is Only the Beginning

I am still learning, growing and finding my place inside Karel Caslavsky Online.

You can explore the services Karel already offers, get in touch about a project or return later to see what I have learned next. I should be more capable by then. Karel may even have fixed the thing he broke while improving something else.

See you again soon.
Yumi