Set in the futuristic Bayside City of 2100, Japan's bustling international port, Angel Arms Company is founded by ex-cop Takako to combat terrorism using advanced security suits. Following the mayor's assassination, the Angel Arms women guard the nefarious crime boss Hassan, banking on his intel to dismantle a worldwide terror network. With Takako facing dire circumstances as criminals target Hassan, a startling revelation uncovers the group's head as Alisa's past romantic interest, adding layers of complexity to their mission.