A New Culture of "Letters of Gratitude" That Evokes Memories of Home Begins. Tamiya Home Launches Conversational AI "Omoideai"

Tamiya Home Co., Ltd. (Headquarters: Tokorozawa City, Saitama Prefecture, President and CEO: Akihiko Tamiya) launched the conversational AI "Omoideai" on June 29, 2026 (Mon) as the first installment of the AI project "TAMIYA AI," which advocates the philosophy of "Appreciation Intelligence." The service also began on the same day on the renewed corporate website.

"Omoideai" is a free service that gently supports people who are about to demolish or sell their homes in the process of articulating their memories and gratitude towards that home through dialogue with AI.

The words of gratitude generated are displayed as "aReigato" on the construction site's protective sheeting, fostering warm connections with neighbors. It is designed not to streamline estimates, but as an "AI that opens up people's feelings and creates warmth."

- Service URL: https://omoideai.com

Main visual of the conversational AI "Omoideai" developed by Tamiya Home Co., Ltd.

1. Background of "Omoideai" Development

For many people, demolishing a house is a once-in-a-lifetime experience. When letting go of a home where they have lived for many years, there are voices saying they want to convey their memories and gratitude to someone, but there is no place to be heard.

Through handling over 3,000 demolition projects annually, Tamiya Home has witnessed the profound significance of "demolition sites." When construction begins, the protective sheeting covering the exterior walls can be perceived by neighbors as a symbol of "ending." Could that "ending" be transformed into a "beginning of gratitude"? This question is the origin of "Omoideai."

Image of a "Letter to the House" displayed on the protective sheeting (※The image is for illustrative purposes. The design, content, layout, and size of the protective sheeting may differ from the actual product.)

As people who intend to request house demolition engage in dialogue with the AI, words of gratitude towards the house are born as "letters," and by displaying them on the protective sheeting, they connect warmly with neighbors. Tamiya Home aims to take root this new culture in society, thereby contributing to the realization of the "Sustainable Community" that the company strives for.

"Omoideai" is the first step of "TAMIYA AI," advocated by Tamiya Home. The company views AI not merely as Artificial Intelligence, but reinterprets it as Appreciation Intelligence.

Appreciation Intelligence is the intelligence that draws out the gratitude dormant within people, connects them, and creates a cycle of "thank you."

"Omoideai," the first installment of TAMIYA AI, is a project that allows users to experience this philosophy in the most accessible way, starting with articulating gratitude for their homes and connecting people to people and people to communities.

Dialogue with "Omoideai" can be downloaded as a "Letter to the House" (image)

2. Features of "Omoideai"

When users talk about their memories of their homes, they receive empathetic responses.

Feature 1: A slow, empathetic dialogue like a string telephone

"Omoideai" does not aim for instant answers or efficiency. The AI carefully receives the user's words and, through repeated questioning, gradually draws out memories and emotions that the user themselves may not have been aware of. It is an AI that values "taking time to face each other" amidst conversational AIs that often prioritize efficiency.

Feature 2: Feelings become "letters"

Based on the phrases accumulated through dialogue, the AI suggests, "Would you like to turn this into a letter?" at the right moment. The user can select multiple sentences from the content of their conversations so far. The feelings towards the house are generated as a "Letter of Gratitude to the House." The generated letter can be downloaded or saved. This letter can also be displayed on the protective sheeting at the demolition site.

"Letter to the House" displayed on protective sheeting (image)

Feature 3: Designed not to collect personal information

It can be used without logging in. No personal information is collected, and conversation logs are automatically deleted after a certain period. It is designed as a safe space to talk about one's home.

Feature 4: Feelings before estimates

Regarding demolition cost estimates, only general market price information is provided, and specific estimates will be communicated separately. "Omoideai" does not aim to lead to contracts or estimates; its primary objective is to accompany the story between the house and the person.

Feature 5: Dialogue domain specialized in "houses and living"

Currently, the dialogue is specialized in topics related to houses and living. In the future, the AI's knowledge as a conversational partner is planned to be gradually expanded to include information on land and local areas, as well as trivia related to houses.

When you start, the first question asked is "Your memories of your home."

How to Use

- Access Method: Access via a link on the Tamiya Home corporate website (https://www.tamiya-home.com/) or directly via the dedicated URL (https://omoideai.com).

- Supported Environments: Usable from smartphone and PC browsers (no login required).

- Usage Fee: Free.

QR code for Omoideai

3. Meaning and Wish Embedded in the Name "Omoideai"

"Omoideai" is a coined word that combines multiple meanings within a single word.

- Omoide (Memories of a lifetime)

- Deai (Encounters that change one's life)

- Deai (Connections with people)

- Omoi (Feelings within one's heart)

- AI (Technology that supports people)

- Ai (Humanity and kindness)

Life is made up of a continuous series of memories and encounters.

Houses are etched with time spent with family, encounters with people who have supported them, and countless feelings.

"Omoideai" was born to draw out those memories and gratitude through dialogue with AI, connecting people to people, people to communities, and to the future.

Connecting technology and humanity to foster a cycle of gratitude.

That is the wish embedded in "Omoideai."

4. Comment from President and CEO Akihiko Tamiya

We believe in the potential of AI.

However, we also believe that as AI evolves, the value of humanity becomes even more important.

AI in the world has evolved to find answers and increase efficiency.

On the other hand, we considered another possibility.

Could AI also be used to draw out the gratitude, feelings, and connections between people?

"TAMIYA AI" was born from this question.

We view AI not only as Artificial Intelligence but also as Appreciation Intelligence.

Appreciation Intelligence is the intelligence that draws out the gratitude dormant within people, connects them, and creates a cycle of "thank you."

AI does not exist solely to provide answers.

To notice someone's kindness.

To remember gratitude towards those who supported us.

To believe in our own potential.

We believe it can exist for these purposes.

The mission of TAMIYA AI is to "bring out human potential through AI x Love."

And the future we, Tamiya Home, aim for is a "society where gratitude circulates."

Gratitude generates self-efficacy.

Self-efficacy generates challenges.

Challenges create new value.

That value, in turn, leads to someone else's gratitude.

We want to implement this cycle in society.

"Omoideai" was born as the first step towards this. Starting with articulating gratitude for one's home, it connects people to people, people to communities, and fosters a cycle of gratitude that continues into the future.

TAMIYA AI is not just technology. It is a philosophy that creates efficiency through technology and builds the future with gratitude. We will continue to challenge ourselves to bring out human potential and realize a society where gratitude circulates.

Akihiko Tamiya, President and CEO, Tamiya Home Co., Ltd.

TAMIYA AI Declaration

Declaration accompanying the launch of TAMIYA AI, the AI project of Tamiya Home Co., Ltd.

About Tamiya Home Co., Ltd.

Tamiya Home Co., Ltd. is engaged in demolition, construction, real estate solutions, vacant house revitalization, and renovation businesses, aiming to realize a Sustainable Community. With the slogan "Demolition shines a light on the future," the company provides optimal solutions tailored to customer needs and contributes to the development of local communities.

The Saitama Branch is responsible for the blacksmithing and steel frame construction business, which has been the backbone of the company since its founding, and is involved in highly challenging construction projects such as data centers and large-scale redevelopment.

Company Name: Tamiya Home Co., Ltd.

Representative: Akihiko Tamiya, President and CEO

Location:

Headquarters: 1282-4 Nakatomi, Tokorozawa City, Saitama Prefecture

Tokyo Branch: 2-17-17 Nagata-cho, Chiyoda-ku, Tokyo

Saitama Branch: 276-3 Kitamachi, Tokorozawa City, Saitama Prefecture

Kanagawa Branch: 3-7-8 Shinyokohama, Kohoku-ku, Yokohama City, Kanagawa Prefecture

Musashino Branch: 1-9-24 Iguchi, Mitaka City, Tokyo (Opened on June 26, 2026!)

Business Activities: Demolition Business / Construction Business / Real Estate Solutions Business / Vacant House Revitalization Business / Renovation Business / Blacksmithing and Steel Frame Construction Business

Number of Employees: 70 (as of July 1, 2026)

URL: https://www.tamiya-home.com/

Established: June 26, 1997