The tradition of Sabanto-Meido arose in Nippon/Japan after the widescale adoption of robotics and automation. It is a cultural movement to embrace traditional values and to counter the subculture movement of the Ko girls.
A circus is in town and while parading down the main street the animals suddenly break free from the cages. After surviving and assisting during the breakout the PCs are hired to help with the investigation. Who did this and why?