Who immediately fled and who fought bravely to the end in the “Bunroku-Keicho War” where Japan and Korea fought?

Battle of Busan Castle (Source: PD/Wikimedia Commons)
“Bunroku-Keicho War” provoked by Toyotomi Hideyoshi with the goal of conquering Ming. How did the Korean side respond to the Japanese army that invaded the Korean peninsula with the impulse to break the bamboo?(See the photo in this article) A person who is considered a “hero” in South Korea and even has a bronze statue built
This is a republished version of a new book by Michihiko Arashiro, a Korean history researcher and professor at Ferris Jogakuin University. ***
In December 1591, Hideyoshi handed over the position of Kanpaku to his nephew Hidetsugu and ordered him to concentrate on ‘Karairi’ and gather supplies for the soldiers in Kyushu and Shikoku around Nagoya at Hizen. Furthermore, Hideyoshi, who had believed in Korea’s ‘submission’ by sending the previous envoy, instructed Yukinaga KONISHI and Yoshitomo SO to cross the sea and gain cooperation. However, Korea had no intention of siding with Japan. Therefore, Hideyoshi organized around 160,000 soldiers into 9 armies and began to invade Korea in April 1592. This is the so-called “Bunroku-Keicho War”. In Korea, it has long been called ‘Jinshin Waran’ (if split in two, it is common to call the Bunroku War the Jinjin War and the Keicho War the Dingyu Rebellion). However, recently, the term “Imjin War” is used to convey the meaning of an international war involving Japan, Korea, and the Ming Dynasty. First, the 1st Army of Yukinaga KONISHI and Yoshitomo SO landed in Korea and surrounded Busan-jo Castle on April 13 (the 14th in the Meireki era). The Japanese army, which launched an early morning attack, fought a brutal annihilation battle that excluded men and women regardless of gender, and quickly captured Busan Castle. After that, the 1st Army marched north, captured Dongnaeseong, crossed the border between Gyeongsang-do and Chungcheong-do, and defeated the Korean army led by Sin-rip, the envoy to the three provinces, at Chungju on the day 27. rice field. The envoy of the three-do capital tour was an important post that supervised the three provinces of Gyeongsang, Chungcheong, and Jeolla, and Shin Lip’s defeat in the first battle shocked Korean society. After the fall of Dongnae, Gyeongsang Jewish envoy Park Hong, who guarded the waters of Gyeongsang-do, fled Suyeong (navy headquarters), and Gyeongsang Won Gyun envoy Won Gyun also fled. As a result, there was no organized resistance force in this area, and subsequent Japanese forces easily landed on the Korean Peninsula. The 2nd Army led by Kiyomasa KATO and Naoshige NABESHIMA landed in Busan on April 17, reached Chungju via Gyeongju, and linked up with the 1st Army. Both armies left Chungju on the 29th and headed north via separate routes towards Hanseong.