At that time, hot springs were separated into zatto (hot springs for common people), the ones which were open to ordinary citizens, and tonosamayu (hot springs for people with higher rank) or kagiyu (hot springs for people with higher rank), which were used only by shogunate officials, local governors and the lords of domains.
この時代は一般庶民が入浴する雑湯と幕吏、代官、藩主が入浴する殿様湯、かぎ湯が区別されていた。