First Mission

The film features Hayate Masao and Moka Kodama as siblings from the Hirose family, who have a long history of protecting their community. Following the death of their parents, the elder brother has raised his younger sister, and together they have trained to defend Funabashi. When the evil organization known as "Corona" threatens their peace with a bio-terrorist plot, the siblings find themselves in a dire situation.

With the older brother injured and unable to join, the younger sister takes it upon herself to carry out their first mission. This storyline emphasizes her determination to protect their home, even as she faces powerful enemies alone. The action-packed narrative and focus on sibling loyalty make this film an engaging entry in the genre, appealing to fans of action films from the past few years.