Keigo Koyanagi (小柳 啓伍, Koyanagi Keigo) is a Japanese scriptwriter and production manager.
10 Episode s . Yuki Kasuhara, a command officer in Yokohama's Fire Department, handles 119 emergency calls, balancing high-pressure crises and workplace challenges. Known for her quick thinking, she often defies norms by visiting accident scenes, sparking friction within the team.