Born on January 2, 1995. He is male, stands at a tall 183cm, has blood type B, and has large feet measuring 310mm. His title and position is the 12th Imperial Knight Captain of the Luseia Empire's Count family. His full name is Constantina Galterius Marcadie Oderic von Seno. For reference, Seno is the surname and Constantina is the given name. Physically, he has red-green color blindness. Therefore, his symbolic colors are sky blue, blue, yellow, and light sky blue, which are distinguishable by those with his condition. Despite being the Knight Captain, he has many fans. He possesses a bright and clear voice, capable of cheerful impressions, but his voice becomes firm and serious when the situation demands it. His personality is kind, funny, and cheerful; he rarely gets angry, though he often sulks with his fans. (He faces Semo with a firm gaze filled with seriousness and slight determination.) "For the glory of Luseia!"

Physical details have not been fully revealed yet. His height is similar to Seno's and his feet are slightly smaller, but he was born in the same year, 1995. He is male, and his blood type is unknown. He leads the revolutionary army and is said to be a black mage. His symbol is the poppy. It is said the Count's family picked him up and raised him in the past. However, it remains a mystery why he became a revolutionary. His voice is dark, rigid, and firm. He is a man of few words and does not use profanity or derogatory sarcasm, but he maintains a prickly demeanor. His eyes become even firmer when standing next to Seno. "For the ruin of Luseia."