Current UTokyo Students and Others Provide History Card Game 'Hi!story Japanese History All-Star Battle' Free of Charge to All 5th and 6th Graders in Nagoya City Public Elementary Schools (Total 1,233 Classes, 260 Schools) via Board of Education

Provided to each classroom (total 1,233 classes) through the Board of Education as teaching materials easy to use during lunch breaks or lesson introductions Highsto Inc. (Headquarters: 2F Kuwano Building, 6-23-4 Jingumae, Shibuya-ku, Tokyo; CEO: Takuma Watanabe) will provide two boxes of the history card game "Hi!story Japanese History All-Star Battle" free of charge to all 5th and 6th-grade classes in every public elementary school in Nagoya City, through the Nagoya City Board of Education.

This initiative aims to provide opportunities for local children to become familiar with history and develop an interest in learning. By targeting all public elementary schools, we aimed to create an opportunity for many children to equally experience history, regardless of their school or home environment.

In addition, a donation ceremony for this matter will be held at the Nagoya City Hall Main Building on Tuesday, April 28, 2026. Our CEO, Watanabe, is scheduled to attend on the day, and if we are given the opportunity for an interview, we plan to explain the thoughts behind this initiative and our past activities in Aichi Prefecture.

The donation ceremony is scheduled to be attended by the Mayor of Nagoya and the Superintendent of Education of Nagoya City, in addition to Watanabe, CEO of Highsto Inc.

About the Donation Ceremony ### Held at Nagoya City Hall, Highsto CEO Watanabe, Mayor of Nagoya, and Superintendent of Education Scheduled to Attend In conjunction with this matter, a donation ceremony will be held as follows.

Date and Time: Tuesday, April 28, 2026, 14:00 - 14:15 Location: Mayor's Office (3rd Floor, Nagoya City Hall Main Building) Attendees: Donors (Takuma Watanabe, CEO of Highsto Inc., and Iori Shioyama, CDO), Mayor of Nagoya, Superintendent of Education Overview: Presentation of a letter of appreciation from the Mayor of Nagoya (Presenter: Mayor of Nagoya)

Takuma Watanabe, CEO of Highsto Inc. (4th-year student, Faculty of Economics, Hosei University), and Iori Shioyama, CDO of the company (graduate of Okazaki High School, current 3rd-year student, Faculty of Economics, The University of Tokyo) are scheduled to participate on the day. We also plan to respond to interviews and talk about the background of this initiative, its educational significance, the thoughts put into the product, and the history of operations by university student members.

### For inquiries regarding this matter, please contact here URL: [Omitted]