By 2100, Bayside City had emerged as Japan's primary global port. Following her retirement from the police force, Takako founded the Angel Arms Company and equipped it with advanced security suits to combat terrorism. However, after the mayor's assassination, the Angel Arms team found themselves protecting the notorious crime-boss Hassan, hoping to extract intel that could dismantle a worldwide terrorist syndicate. As the group faced threats from a criminal faction, Takako became desperate to prevent Hassan's murder, especially after learning that the syndicate's leader was once romantically involved with the Angel member Alisa.