An ominous army launches a ground assault on Earth, and its Lieutenant Shun Miller is intent on inflicting chaos upon the civilians. Miller"s brutal renown terrifies even his own troops, positioning him as the ideal commander for a strike against a city shielded by a formidable magical girl named Byakuya Mimori. Yet his offensive stalls on the day they first meet—because he abruptly falls in love with Byakuya at a glance!
Captivated by Byakuya"s sweet, fragile charm, Miller starts gifting her and treating her with tenderness. However, he soon discovers that Byakuya"s Angel—the feline familiar who granted her powers—has been manipulating and exploiting her all along. This revelation hardens Miller"s determination to help Byakuya find a brighter future, yet as the war rages on, they question whether their growing affection can transcend the gulf between them.