The letter sent by independence activist Kim Ji-seop to his family from prison has been restored after 100 years. Along with that, the biography of General Kim Jwa-jin, detailing his life, has also been recovered. The Independence Hall of Korea preserved the ‘Kim Ji-seop’s letter’ and ‘General Kim Jwa-jin’s biography’ over a period of about 5 months. According to the Independence Hall of Korea, the ‘Kim Ji-seop’s letter’ was written by Kim Ji-seop, a member of the independence movement organization Uiyeoldan during the Japanese colonial era, who threw a grenade at the entrance of the Tokyo Imperial Palace and was imprisoned. The letter to his brother Kim Hee-seop shows Kim Ji-seop’s composed attitude before the sentencing, concern for his imprisoned comrades, and his denial of having a son. In the letter to his wife Kwon Seok-hee, there is a sense of sadness as he discourages her from visiting him in Japan. The letters had suffered damage over time, including discoloration and contamination from tape adhesive attached by later generations. Through cleaning and scientific analysis, the damaged parts of the letters were restored to their original state. The ‘General Kim Jwa-jin’s biography’ is a document that was recited at his funeral in Manchuria in 1933, detailing his birth, death, activities, beliefs, and family relationships. Although there are intentional omissions suggesting the presence of the reciter and writer, it is seen as a reflection of the suppression and conflicts of that era. The biography, measuring 205cm in length, was connected with reinforcement paper and backing paper on the back. The backing paper includes details added by General Kim Jwa-jin’s descendants, recording the date of his death, the fact that he was executed, and that the biography was recited at his funeral.