His appointment reflects Japan's intent to manage sensitive issues with China, such as maritime territorial disputes and economic tensions, through pragmatic and diplomatic approaches.

Kanasugi's tenure as ambassador to China focuses on critical issues, including addressing Beijing's concerns about Japan's wastewater release from the Fukushima nuclear plant.

[2] As Director-General of the Asian and Oceanian Affairs Bureau, he played a pivotal role in managing Japan's relations within the Asia-Pacific, particularly during a time of heightened tensions with neighboring countries.

Kanasugi's tenure as Japan's ambassador to Indonesia from October 2020 until November 2023 highlighted his ability to foster bilateral relations in Southeast Asia.

[1] Appointed in October 2023, Kanasugi became Japan's ambassador to China, a critical role amid strained relations due to disputes over territorial waters, trade policies, and detained Japanese nationals.