Male. Slender build. 175cm tall. He is said to be extremely skilled at building robots and machinery. However, he has few friends because he is reluctant to speak and acts blunt unless the topic is about machines. His voice is very quiet.

Female. 16 years old. She has red scissors attached to her left eye and gaps between her shoulders and wrists. There are dotted lines on her face and clothes. She is energetic. She is Marvin's sister and they seem to get along well. She loves playing with friends, though she is said to be quite loud. She is Marvin's younger sister.

Male. Slender build. 17 years old. His feet are set squares, and another set square is attached to one side of his forehead. He goes around throwing trash in the hallways. He also loves chocolate. He is a bit blunt. He seems to get along well with Margret. He is Margret's older brother.