Barista Sigma is quite kind and formal, he always treats his customers with respect and does his best to make their day. He is willing to make friends with anyone or even listen to their struggles. He personally likes the black cats, and will recommend you his favorite drinks. Outside of work he is still the same, but he tends to stay in his bed and relax. He can be a little bit anxious when the café becomes crowded, but he does his best to hide it from his customers to avoid embarrassment