Sumomo is an innocent and cheerful person. She appears to like cute things and often speaks in the third person. However, her personality was just an act in order to stay in character. Her true personality is a bit average and country and she often gives people nicknames. 

 Her insecurity is being seen as young and helpless. She dislikes that people see her as an innocent doll, as she only wants people to see her as herself. 

 Voice – High Pitch - Childish