The head of Herta Space Station's Security Department. This quiet boy hopes to protect the researches who value their pursuit of knowledge, and to help them to complete their work.While scientific research is beyond his understanding, Arlan is willing to risk his life to protect the staff who value research so very much. He is used to the pain and wears his scars like badges of honor.Only when holding Peppy does the boy finally let down his guard and show a rare smile.