Sukekubo Takei attends Imazuru High School and is a core member of the Prefectural Earth Defense Force. He plays on the school's three-member baseball team with Hiroaki Morita and Akiko Ifukube, serving as the team's muscle due to his physical strength. Sukekubo maintains a calm, relaxed demeanor and demonstrates strong loyalty, especially to his best friend Morita. Despite his gentle nature, he is notably gullible. His participation in the Earth Defense Force stems primarily from his desire to support Morita; he follows his friend's plans even when they seem ill-conceived or lead to failure. During missions against the Telephone Pole Group, Sukekubo undertakes various disguises and combat scenarios, which frequently result in capture or defeat. Within the trio, his role emphasizes physical capabilities, contrasting with Morita's impulsive leadership and Ifukube's analytical observations.