三井不動産、藤井聡太叡王×伊藤匠七段×「Rugby School Japan」副校長の歓談イベントを開催 http://okane.robots.jp/2024/05/31/%e4%b8%89%e4%ba%95%e4%b8%8d%e5%8b%95%e7%94%a3%e3%80%81%e8%97%a4%e4%ba%95%e8%81%a1%e5%a4%aa%e5%8f%a1%e7%8e%8bx%e4%bc%8a%e8%97%a4%e5%8c%a0%e4%b8%83%e6%ae%b5x%e3%80%8crugby-school-japan/