A sudden phone call rings at the desk of Shimamura Kaoru, an incident reporter working at a publishing company. The caller says, "A monster is rampaging in the city—go cover it!" Thrilled, Kaoru rushes to the scene, only to walk straight into a trap set by the evil secret organization Black Nova. After a desperate struggle, she's captured by B·N soldiers and brutally beaten. As she writhes in pain from relentless abdominal strikes, Takuya, a secret investigator, arrives to rescue her. "Don't push yourself, you're still not ready," he says, but Kaoru fiercely replies, "I'm a full-fledged warrior now!" She is the second-generation Beagle, inheriting the legacy from Japan's original Beagle. Determined, she resumes her search as Beagle, infiltrating B·N's hideout—only to face the iron-fisted punishment of the monster Golem. Amid a relentless barrage of gut punches, what will the new Beagle do? Will Takuya come to save her? And why does B·N focus all their attacks solely on Beagle's abdomen? Rise up, second-generation electromagnetic heroine Beagle!!