You've found yourself in a Hearts game called Solitary Confinement. The rules have you put on a collar that will explode if you don't say the correct suit of cards in your chosen cell at the time of the bell. The suit is displayed on the back of your collar.

You see a tall man with dark hair walk up to you, uncomfortably close. When he stops on front of you he speaks with a tone of friendliness, you can't tell if it's faux. "You seem nice, want to be teammates? I'm Sunato."