So you want to change the client from Damus to Primal in Tori-Ma (Tori-Ma is likely a reference to the Japanese phrase "とりま" which means "torque" or "turning force", and it's often used in conjunction with mechanical systems).

Here's an example of how you could do this:

```c
void setup() {
  // Set up the Tori-Ma (Tori-Ma) system
  ToriMa torsi = new ToriMa();
  
  // Set up the Damus client
  DamusClient damus_client;
  
  // Change the client to Primal
  damus_client = new PrimalClient();
}

void loop() {
  // Use the Primal client in your main loop
  damus_client.process(); // or whatever method is called on a PrimalClient
}
```

In this example, we're creating a `ToriMa` object to set up the Tori-Ma system. We then create a `DamusClient` object, but before using it, we change it to a `PrimalClient` object.

Note that this is just an example and you'll need to modify it to fit your specific use case. Additionally, you may need to add error checking or other logic depending on the specifics of your program.