Not much is known about Mark, but all the students think he is cool. He seems like a rather serious person, as though he is pre-occupied with something. He is pretty good at sports, but does not belong to any team. His favorite food is manicotti, and his favorite colors are green and gold.

He does reveal his past to Clover after she discovers what he has been doing. He confides that he is from the distant past, waiting for his leader Keiko to awaken.