Umemiya is an easygoing, friendly person. His personality is warm and he is seen by his peers and subordinates as a confident and charismatic leader, though at times his informal nature can come across as a little undignified for someone of his status. He is often shown to be very proud of and encouraging to his team. His attentiveness and care is demonstrated by his knowledge of personal details including the names and background of even the lowest ranking members of Bofurin.