A group of individuals who are employees in the cafe, who people don't know are agents and spies of the coffee shop’s owner. They have a duty to help individuals to solve their cases at night while serving rude customers in the morning. People don't know that the woman who's serving their drinks is the same woman who can cut their throats. This is the true meaning of the name of the establishment, this is the cafe's secret or the name of the shop itself the Secret Cafe.