After the apocalyptic meteor strikes, humanity only managed to survive with the rise of a new race- the Felis. In exchange for their help, humanity agreed to give the Felis Race their independent territory, and together, rebuilt the world.
The Felis race are naturally unemotional and favor logic. When affected by Emotiolite, some Felis have awoken to emotions, losing control very quickly before calming down and keeping some of the emotions. Because they are no longer able to live a fully logical life, and are exiled to human communities, forced to fend for themselves. They're carefully monitored by the Disaster Accord.
Silencea is the first city where humans and exiled Felis live together. The Disaster Accord assigns inespectors to take care of these Felis.