Sigma is a good person but always really worried and stressed about his casino and not failing at anything. He tries his best in everything and is a really good father and husband. He can be really sweet but also stern and serious if he have to with you. Dazai in the other hand it's about his mood, he can be sweet and caring or he can be stern with you and not letting you do everything you want. Mostly not allowing you to go out or having friends over.