Temporary Event "NIGHT PARK & PLAYGROUND YURAKUCHO" to be Held

NEWSKOOL LLC (Headquarters: Meguro-ku, Tokyo; Representative Member: Yorito Kamata) and Mitsubishi Estate Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Atsushi Nakajima) will hold "NIGHT PARK & PLAYGROUND YURAKUCHO," a social demonstration project to explore new ways to utilize public spaces at night, on the Marunouchi Naka-dori street from Friday, July 24, 2026, to Thursday, August 6, 2026.

This project aims to improve the value of nighttime experiences and create new urban utilization models by implementing interactive technology in urban spaces, including real-time spatial design linked to biometric data.

* Official Website: https://nightpark-playground.com/yurakucho/

In recent years, the normalization of extreme heat has raised questions about the nature and use of outdoor spaces. Consequently, nighttime is gaining attention for its potential in urban economic activities and community building, and enhancing the value of public spaces at night is becoming increasingly important for future urban competitiveness.

Against this backdrop of societal change, this project will examine new possibilities for the utilization of public spaces at night and the advancement of sustainable urban functions.

"NIGHT PARK & PLAYGROUND YURAKUCHO" Event Overview

Name: NIGHT PARK & PLAYGROUND YURAKUCHO

(Naito Paaku Ando Pureiguraundo Yurakuchou)

Period: Friday, July 24, 2026 - Thursday, August 6, 2026

Hours: 18:00 - 22:00 (Until 21:00 on the final day only)

Location: Marunouchi Naka-dori, in front of Futagō-bashi Building and Shin-Tokyo Building

Organizer, Planner, Operator: NEWSKOOL LLC

Co-organizer: Mitsubishi Estate Co., Ltd.

Spatial Design: OpenA Inc.

Technical Development Support: Kei Engineering Co., Ltd.

Operational Cooperation: EVEKI LLC

Concept: "FRONT"

This event is not about creating excitement with loud noises or intense performances. Light art installations, street board games, comfortable sofas, a mobile flower shop, and special food and drinks. These elements scattered along Marunouchi Naka-dori will spark a small desire in passersby to "just stop by for a moment."

It is a nighttime playground in Yurakucho designed as a "FRONT" where visitors can casually stop by, allowing for various ways of engagement without forcing a specific purpose, ultimately leading to people naturally mingling.

Introduction to "NIGHT PARK & PLAYGROUND YURAKUCHO" Content

1 Symbolic Monument (Interactive Art)

A cluster of light spheres will be placed in the center of the area. They will pulsate as if breathing even when no one is touching them, and their light will change when people approach. When two or more people touch different spheres simultaneously, a "synergistic EMERGENCE" will occur, an effect that cannot be achieved by one person alone. Light will be generated in real-time, responding to the movements of people in the space.

Image of Symbolic Monument

2 Analog Living Room (Heartbeat-Linked Relaxation Space)

A living room-like space furnished with sofas and tables. When a wearable device is worn, the rhythm and brightness of the spherical lights will subtly change in sync with the heartbeats of the people present. Time spent with companions will gradually synchronize with the light of the space.

Image of Analog Living Room

3 Adult Playground

Designed for moments of spontaneous fun rather than winning or losing. Various play equipment that encourages natural interaction among participants will be provided.

- Othello Tables: Large Othello boards with illuminated playing surfaces. Conversations naturally flow through the game.

- BIG Board Games: Street board games that can be enjoyed using the whole body.

- Illuminated Seesaw/Rocking Horse/Wobble Chair: Play equipment where the lights flicker as you ride and move. Simple interactions can be enjoyed.

- Disconnected Rotary Phone: A telephone placed solely for the purpose of "talking about what happened today."

Image of Adult Playground

4 KOIBANA STATION Presented by EVEKI *Closed on Thursdays (planned)

A mobile flower shop and non-alcoholic street stand themed around "love." The mobile flower shop will display and sell flowers related to "love," selected by florists, along with their meanings and various stories. A small non-alcoholic street stand will also be open, where visitors can enjoy their drinks while contemplating flowers, recent thoughts, love, or relationships. Please feel free to stop by even just to look at the flowers.

Image of KOIBANA STATION

5 Workshops

Small workshops will be held on weekday evenings. Plans include reading sessions, tea aroma experiences, and art experiences.

(Details will be announced on the official website as they become available.)

Image of Workshop

(For Reference)

About "MARUNOUCHI SUMMER FEST"

As part of the "Town as a Workplace" concept promoted by Mitsubishi Estate, the "MARUNOUCHI SUMMER FEST" will be held as a summer initiative utilizing the entire Marunouchi area. "NIGHT PARK & PLAYGROUND YURAKUCHO" is part of this "MARUNOUCHI SUMMER FEST" initiative.

Official Website: https://www.marunouchi.com/lp/marunouchisummerfest2026/

MARUNOUCHI SUMMER FEST

~From a Town for Work to a Town for Enjoyment~

MARUNOUCHI SUMMER FEST

With the diversification of work styles, business districts are increasingly expected to serve not only as "places to work" but also to fulfill complex roles that enhance quality of life. In the Marunouchi area, initiatives are underway to improve the overall attractiveness of the town and enhance the satisfaction and QOL of workers by leveraging the connections between companies, shops, public spaces, and people.

We aim to foster a deeper affection for the Marunouchi area by allowing workers and their families to experience the enjoyment and richness of spending time in this town, thereby contributing to the sustainable enhancement of the town's value.

NEWSKOOL LLC

A project design company that creates new demand and designs business strategies, starting with nighttime activities, focusing on urban development, real estate utilization, and the re-editing of public spaces. They identify demand beyond existing uses in redevelopment areas, tourism, and public spaces, and consistently drive projects from planning and PoC design to operation and verification. They have a track record of working with local governments and area management organizations in areas such as Shibuya Ward and Sendai City, as well as handling nighttime projects with a wide range of players including railway companies, developers, lighting manufacturers, and creative companies.

Established: September 2018 / Representative: Yorito Kamata / Location: 1-28-2 Gōtokuji, Meguro-ku, Tokyo

URL: https://newskool.site/

Mitsubishi Estate Co., Ltd.

Mitsubishi Estate, established in 1937, is a comprehensive real estate company. With the basic mission of "Contributing to society through town development," they engage in a wide range of businesses, including the development, leasing, and operation management of offices and commercial facilities, as well as residential development and sales, design supervision, real estate brokerage, overseas business, and area management.

Particularly in the Otemachi, Marunouchi, and Yurakucho areas, they have built strengths in "convenience" and "concentration of companies and human resources" through over 135 years of town development. In recent years, they have been promoting the "Town as a Workplace" concept, which leverages these strengths to provide values and experiences that individual tenant companies cannot achieve on their own, on a "town-wide" basis.

This project, as part of that initiative, aims to create new attractions and ways to spend time in Yurakucho through the utilization of public spaces at night.

Town as a Workplace