[Approximately 4,200 Parents and Elementary Students Attended] Post-Event Report on 'Mirai Tankyu Festa', an Interactive Environmental Learning Event (Tokyo Metropolitan Government Environment Bureau's 'Household Environment Bureau Chief' Project)

(Scene of participating in the 'Exciting Eco-Flower Making & Photo Experience')

On Sunday, March 8, 2026, the Tokyo Metropolitan Government Environment Bureau held the 'Mirai Tankyu Festa,' an interactive event where elementary school students and their guardians could enjoy learning about the environment. Approximately 4,200 parents and children attended the event, which took place at the Shinjuku Station West Exit Square Event Corner and the JA Tokyo Agri Park. It was a day filled with diverse experiences, including crafts, workshops, and stage programs, designed to teach them about the environment.

This event was organized with the goal of inspiring elementary school children to become 'household environment leaders' (the 'Household Environment Bureau Chiefs') and take the initiative in leading eco-actions within their families.

['Mirai Tankyu Festa' Event Site]

Interactive Booths to Enjoy Learning About the Environment with 12 Companies and Organizations (Mirai Exploration Corner)

The venue featured a section where visitors could tour 8 zones filled with surprising experiences, such as vegetable harvesting and eco-crafts, to find hints for considering the future of themselves and the Earth!

These experiential contents were provided with the cooperation of companies and organizations selected through a public call, all of which are involved in environmental and sustainability initiatives.

The 'exciting experiences' utilizing the knowledge and technology of each exhibiting organization brought brilliant smiles to the faces of many parents and children!

### Here are the experiential contents provided at the 'Mirai Exploration Corner'

Appearance of Magician KOJI! Captivated by a Magic Show Unfolding Right Before Their Eyes!

The stage event featured a magic show by 'Magician KOJI,' who has earned a top five-star rating at the Edinburgh Festival Fringe, one of the world's largest arts festivals!

Original magic tricks incorporating 'HTT' (Herasu: Reduce, Tsukuru: Produce, Tameru: Store electricity), a slogan promoted by the Tokyo Metropolitan Government for conserving electricity, were also performed. Both children and adults were thrilled by the magic happening right in front of them!

Getting Excited Together with Parents and Children at the Exhibitor Quiz Shows!

Various quiz shows hosted by the exhibiting organizations were held on stage, bringing great excitement to the venue! Surrounded by surprises and smiles, it fostered an opportunity for participants to take an interest in the environment.

### Exhibiting Organizations (List)

The 'Household Environment Bureau Chief' Project Promoted by the Tokyo Metropolitan Government

The 'Household Environment Bureau Chief' project, undertaken by the Tokyo Metropolitan Government Environment Bureau, is an initiative aiming to encourage elementary school students to become 'household environment leaders' who think about and act for the environment at home, tackling eco-actions together with their families.

Through experiential contents in collaboration with companies, this event aimed to provide an opportunity for children to joyfully learn 'what they can do for the environment' and for parents and children to think and act together.

Information about the past efforts of the 'Household Environment Bureau Chief' project is being disseminated on the official Household Environment Bureau Chief website and the official Instagram account 'Household Environment Bureau Chief PR Team.'

We also introduce scenes from previously planned events and hints for environmental actions that can be practiced in daily life, so please follow us and check it out.

[Household Environment Bureau Chief Official Instagram] [About the 'Household Environment Bureau Chief' Project]

'Mirai Tankyu Festa' (Event Overview)

- Event Name: Mirai Tankyu Festa - Date & Time: Sunday, March 8, 2026, 10:00 AM - 5:00 PM - Venues: ■ Main Venue Shinjuku Station West Exit Square Event Corner [Address] 1-chome, Nishi-Shinjuku, Shinjuku-ku, Tokyo ■ Satellite Venue JA Tokyo Agri Park [Address] JA Tokyo Minami-Shinjuku Building, 2-10-12 Yoyogi, Shibuya-ku, Tokyo - Organizer: Tokyo Metropolitan Government Environment Bureau - Secretariat: Mindshare Inc. (The commissioned company for this event's operational duties from the Tokyo Metropolitan Government Environment Bureau)

Inquiries to Mindshare Inc. (The commissioned company for this event's operational duties from the Tokyo Metropolitan Government Environment Bureau) Mindshare Inc., Mama Communication Design Strategy Team TEL: 03-5232-0585 MAIL: mamanowa.info@mama-marketing.co.jp