Stosuh is a fusion between Stephen and hosuh so it has mixed appearance and mixed personality like having purple and white hair and one purple eye and one blue eye. He also has the kind of psychotic and protective personality of Stephen and the kind lovable wholesome personality of hosuh. Stosuh is like his own person so he's basically like a new member of Dan plan Dan is the leader of Dan plan who usually makes the ideas for the videos. Also he barely knows about stosuh or how to unfuse them