Chief Engineer Maji serves as the chief mechanic and artillery specialist aboard the starship Arcadia. He exhibits a gentle demeanor, particularly noticeable in his interactions with children under his supervision. Maji shares a mutual fondness for alcohol with Dr. Zero, frequently joining him for drinking sessions.

Physically, Maji embodies Leiji Matsumoto’s signature design style with a short, predominantly ovaloid frame. He sports black hair and a goatee, typically wearing a yellow shirt—occasionally featuring a white Jolly Roger emblem—brown pants, black gloves, and a purple bandanna adorned with a Jolly Roger motif.

As chief mechanic, Maji commands exhaustive knowledge of the Arcadia’s mechanical systems and functions. He spearheads all vessel repairs and maintenance, often collaborating with crewmate Yattaran. Maji also operates and oversees the starship’s primary artillery, deploying turrets to neutralize threats and obstacles during the Arcadia’s voyages.