[Machine Translation] Kamo Serizawa, Isamu Kondo, Hajime Saito, and two mysterious officers, Nishiki Niimi and Ukyo Tani, are so well-known that their images seem to have become fixed. This book is a must-read for fans of the Shinsengumi, as it carefully reads existing historical documents and unearths new historical documents in various parts of the country, eliminating conventional floating theories that have no basis in reality and opening up new horizons in the study of the Shinsengumi!