Saeko Yagami reports on the Dragon Empire's attacks. She operates the Repeater Car, a modified news van providing vital transportation for Ken Taiga and his allies across Japan. Her connection stems from her grandfather, an archaeologist whose research into the ancient Drago Empire grants crucial insights into the antagonistic force's origins and goals. This legacy drives her involvement in uncovering the Empire's activities and supporting the protagonists. Professionally, she facilitates the group's mobility and investigations using her resources. Personally, she dislikes dogs and once had a romantic relationship with Kanzaki Shingo. Her contributions center on logistical support and leveraging her grandfather's research, making her a key, informed ally against the Dragon Empire's threats.