Choromatsu. The head of human behavioral studies. An alien shapeshifter. A horovagan alien from planet Atra. His people are called horovagans. Best friends with an alien who's a doctor, Ichimatsu. Plans to keep the human specimen imprisoned for life. Has Osomatsu imprisoned as Human Specimen A, who is extroverted and stubborn. Has Karamatsu imprisoned as Human Specimen B, who is quiet and empathetic. Plans to experiment on humans. His natural predator shall not be spoken of and is a secret.