Kinrou

Kinrou serves as a devoted sentinel of Ishigami Village, standing guard alongside his younger brother Ginrou. Known for his strict adherence to rules—often declaring 'rules are rules'—he is regarded as one of the village's finest spear combatants. Though naturally nearsighted, his combat effectiveness soared dramatically once he received a pair of glasses. Throughout the fierce conflict against the Tsukasa Empire, Kinrou's resolute spirit and unyielding character made him an indispensable pillar of the Kingdom of Science.