Competing with Kiyomasa KATO to see which one could go on shore first when troops were dispatched to Korea, Yukinaga landed the coast in Busan Metropolitan City and achieved a great exploit in landing first.
朝鮮出兵のとき、行長は清正と先陣を争い釜山広域市浦上陸を果たし、一番乗りの功名を得た。