[2][3][4] In March 2013, Princess Tsuguko graduated from the School of International Liberal Studies at Waseda University with a bachelor's degree.

To mark the occasion, she was awarded the 2nd class of the Order of the Precious Crown and attended a press conference in her honour, during which she answered questions from reporters about her future and her past.

In September 2013, she attended the final of the Grass Ski World Championships in Shichikashuku, Miyagi Prefecture: she met some Czech athletes present and congratulated them.

[27] On 22 May 2018, Princess Tsuguko attended a "Panel for Life" event held at Haneda Airport, Tokyo, and gave a speech about her experience with animals.

[34] On 10 August 2019, Princess Tsuguko visited Yatsushiro, Kumamoto Prefecture, to attend the "Archery finals of the Inter-High School General Sports Championships".

[35] On 4 and 5 October 2019, Princess Tsuguko visited Kasama, Ibaraki Prefecture to attend the "74th National Sports Festival".

[37] On 21 November 2019, The Princess and her mother attended the opening and reception of the "Nuns Healing Hearts" photo exhibition at Mitsubishi Ichigokan Museum in Tokyo.

[38] On 5 December 2019, Tsuguko visited the National Art Center in Minato, Tokyo for the exhibition "Treasures from Budapest: European and Hungarian Masterpieces from the Museum of Fine Arts, Budapest and the Hungarian National Gallery" together with the Prime Minister of Hungary, Viktor Orbán.

[44] The Princess and her mother attended a dinner concert at the Embassy of Hungary in Shibuya, Tokyo, on the occasion of the anniversary of diplomatic relations between the two countries, on 7 June 2022.

[citation needed] Princess Tsuguko, as Honorary President, attended the "2022 Inter-High School Archery Competition" in Marugame, Kagawa Prefecture, on 10 August 2022.

[53][54] The Princess attended the "2nd Global Youth Forum for a Culture of Lawfulness" in Kyoto on 3 and 4 December 2022, and gave a keynote address to those present at the opening of the event.

[57] On 5 March 2023, Princess Tsuguko attended the celebrations marking the 30th anniversary of the establishment of diplomatic relations between Croatia and Japan.

[62][63] However, they also took part in other events in the country: on 30 May 2023, Tsuguko visited a Palestinian refugee camp in Amman, the capital of Jordan, together with her mother.

The two talked to the refugees, took pictures with them and listened to their life experiences;[64][65] also the same day, Tsuguko and her mother visited "UNICEF supported Makani centre" in Amman.

[70][71] Before the start of the ceremony, both expressed their best wishes to the parents of the groom, King Abdullah II and Queen Rania of Jordan and at the end of the ceremony the Princesses congratulated the bride and groom; the same evening the Princesses attended the wedding banquet hosted at Al Husseiniya Palace;[72] on 2 June 2023, Tsuguko and her mother visited a Japanese complementary school in Jordan, talked to the facility's teachers, and took pictures with those present;[68] on 3 June 2023, Princess Tsuguko and her mother returned to Japan.

[76][77] On 30 September 2023, Princess Tsuguko attended the "FIVB Paris Olympic Qualifier/World Cup Volleyball 2023 Men's Japan vs Finland" match at Yoyogi National Gymnasium, in Tokyo.

[80][81][82] On 6 January 2024, Princess Tsuguko attended the "9th All Japan Brass Symphony Competition Finals" at Fuchu-no-mori Art Theater, in Tokyo.

[86][87] On 5 April 2024, she and her mother attended the "2024 Cherry Blossom Charity Ball" organised by the International Ladies Benevolent Society (ILBS) at Hotel Okura, in Tokyo.

[102] On 25 February 2025, she and her mother attended the funeral of Tsuneo Watanabe (director and editor of Yomiuri Shimbun Holdings) at the Imperial Hotel, in Tokyo, and also toured an exhibition about his life at the same building.

[110][111] In addition to activities on behalf of the Imperial Family, Tsuguko works at the Japan Committee for UNICEF from April 2013 and plays an active role in representing it: On 19 February 2018, Princess Tsuguko traveled to Kumamoto Prefecture to attend a conference on sports and children's rights and acted as a lecturer.

[118] On 1 November 2019, Tsuguko traveled to Chuo University Tama Campus in Hachioji, Tokyo to participate in the conference "The Current Status and Challenges of Immunization in Africa and Asia" organized by the UNICEF and her.

She gave a presentation to elementary and middle classes at a local school on the conditions of children around the world, then visited government offices of the Prefecture, and met with members of Miyazaki's UNICEF group.

[120] She visited Ehime Prefecture as a UNICEF employee from 8 to 9 September 2022: on the 8th, she visited the Prefectural office in Matsuyama and met with Governor;[121] on the 9th, she went to an elementary school in Matsuyama, where she spent time with the children, which she explained the current situation of children all over the world suffering from war and poverty.

Princess Tsuguko spoke about UNICEF's role in the world, exchanged ideas and answered students' questions and gave the closing remarks of the seminar.

[132][133] On 28 June 2024, she attended a virtual conference at Chuo University Tama Campus, about how to apply possible charitable (and/or UNICEF-provided) solutions in African poor countries.