Amamiya-sensei, or Alisa Amamiya, is a pivotal character in the anime series Kangoku Senkan. Known for her intelligence and beauty, she is a skilled and respected officer within the interstellar military forces. Her role involves maintaining order and discipline aboard the space penitentiary. Alisa is often portrayed as strict yet compassionate, balancing her duties with a deep sense of justice. Her interactions with other characters reveal her complex personality, as she navigates the moral dilemmas and challenges presented by the harsh environment of the space prison.