Kei Gamata is a wealthy Japanese businessman defined by opportunism and self-preservation. His substantial financial resources grant him significant influence, evidenced by covering hotel damages for others and bribing police to free detainees. Profit motives drive his engagement in the central conflict, specifically targeting the Fumoon's advanced space gondola technology as a lucrative opportunity. This compels him to dispatch employees to tail protagonists to Bateito Island for reconnaissance. As a lethal gas cloud threatens Earth, his self-preservation instinct dominates, culminating in an attempted theft of the Fumoon's space gondola to secure his personal escape. These choices consistently prioritize business interests and individual survival above collective safety or ethical concerns.