I really think the biggest obstacle to major gains in bilateral relations is going to be how does President Yoon convince Kishida that anything they agree to will actually last after he leaves office? The Japanese have seen so many agreements get reneged on after a new person takes over the Presidency that is why they are probably going to be very cautious before agreeing to any major deals:
Japanese Prime Minister Fumio Kishida arrives at Seoul Air Base, south of Seoul, on May 7, 2023. (Yonhap)
Japanese Prime Minister Fumio Kishida arrived in South Korea on Sunday for a summit with President Yoon Suk Yeol, marking the full-scale resumption of “shuttle diplomacy” between the two countries’ leaders after 12 years.
Kishida’s visit comes as bilateral relations have warmed significantly following Seoul’s decision in March to compensate Korean victims of Japanese wartime forced labor without contributions from Japanese firms.
Yoon traveled to Tokyo 10 days after the decision was announced and held a summit with Kishida as the first South Korean president to pay a bilateral visit to Japan in 12 years.
Kishida’s two-day visit is also the first bilateral visit by a Japanese leader in 12 years, marking the full-scale resumption of “shuttle diplomacy,” or regular mutual visits, as agreed between Yoon and Kishida during their summit in Tokyo in March.
Upon arrival, the Japanese prime minister headed to Seoul National Cemetery and paid his respects to Korea’s fallen independence fighters and war veterans.
Later in the day, he will hold a summit with Yoon at the presidential office, hold a joint news conference, and then have dinner with Yoon and first lady Kim Keon Hee at the official presidential residence, according to diplomatic sources.
Yonhap
You can read more at the link, but that was a very symbolic move by Kishida to pay his respects at the National Cemetery.