Samurai.. in 1952.. you know what author, you are Korean. You should already know that at that time Japan was kicking our butts in WW2, raping our women and enslaving our men and whatnot at that time. Meaning the Meiji reformation already happened. And there are no more samurai back then.
Ahhh yes. This is the arc that I dropped the novel cause the heroes were hateful and the MC starts to turn retarded. Making the MC character development of hating and being wary human in the previous arc moot.