On May 7, 2022, Japanese Princess Kako attended the 31st Forest and Flower Festival's (Midori no Kansha-sai) event titled "Greenery Thanksgiving Day" at Iino Hall in Tokyo. That became the first public activity of Princess Kako since November 2020. The Princess took over honorary presidency of the Festival from her sister Mako Komuro who got married to Kei Komuro and moved to New York.