Historically, the Shinsengumi were not the core military force of the shogunate. As previously introduced, they were merely a band of ronin drawn in by the shogunate and hence, were considered at the bottom of the Japanese Samurai's despised chain.
Truthfully, Japanese samurai, European nobles, and various pet enthusiasts share a common point: they cherish bloodlines a great deal, and therefore, naturally despise these civilians who they considered lowly in their eyes.
According to historical records, the Shinsengumi at that time was only responsible for law enforcement in a certain area of Kyoto and sometimes did dirty work for the shogunate, which regular samurais were reluctant to do.
However, because this organization originated from ordinary people, numerous cultural works were later based on this organization's prototype, practically making it a representative symbol of the chaotic era at the end of the Japanese Shogunate.
