It's not easy being good at everything. First-year high school student Natsuo Ishido has always been a gifted athlete, and her ability to easily master every sport has not only bought her a life of boredom, but the resentment of everyone else who has had to work hard for their achievements. Not that Natsuo cares what anyone else thinks. All she longs for is a break from the monotony...for a real challenge worthy of pouring all her efforts into. A rival-an equal-worth beating down, crushing...

After being completely overwhelmed by Yuzuko Mawatari's jiu-jitsu in a rooftop sparring session, Natsuo resolves to learn the mixed martial arts skills she needs to take her down. She officially quits the volleyball team, and starts looking for an MMA gym to join. When she's waylaid by an irate Captain Sawamura looking to get even for Natsuo crashing the karate club and defeating her lieutenant, it's the perfect opportunity to try out what she's learned…

Natsuo joins the Takenaka Dojo, where she starts training under pro MMA fighter Karin Kontani. Each day is a tough grind-endless training exercises, grueling grappling sessions, getting “volunteered” to be Karin's demonstration dummy for her class on takedowns, and having her butt handed to her by snarky fellow first-year Haruka Kirido's jiu-jitsu…but for once, she isn't bored. When the team goes to support a dojo member competing in an amateur grappling tournament, they're shocked to see ...

After knocking out her first opponent with a perfectly-timed knee, Natsuo comes face-to-face with Sanae Sawamura in the next round of the tournament. Icily determined to serve Natsuo some long-overdue payback, Sanae proceeds to outclass her with her superior striking skills. As the fight starts to slip away from her, Natsuo finds herself reminiscing about a time, long ago, when she and Sanae had been close…a time when so much in Natsuo's world had been very, very different.

After her first amateur fight ends in a swift KO, Natsuo is disappointed…not in her dominant performance, but because the win came too easy, a far cry from the brutal challenge that she craves. When she finds out that her rival Yuzuko Mawatari will be entering the rookie selection competition for the big G-Girl tournament at the end of the year, it lights a fire under her. She trains single-mindedly for the chance to pummel Yuzuko's little face in the ring, but her coach thinks it's far to...

Natsuo reveals her true colors when she humiliates one-time rival Haruka Kirido at an amateur grappling competition. Unable to deny her monstrous talent any longer, Karin reluctantly allows Natsuo's entry into the G-Girl Rookie Selection Tournament, where she hopes to finally lay her gloves on that hateful Yuzuko Mawatari. After a month of hard training, the only hurdles that remain between her and Yuzuko on tournament day are the elite competitors in her bracket. Among them, a wrestling s...

As the carnage unfolds across town at City Hall, Tatsuki and Fukami are locked in a deadly battle with Ebisawa in the underground parking garage where it all began. The detective's clever gambit has stunned Ebisawa for a moment, but it was the very last of his tricks-if they can't end it now, they're as good as mincemeat. One problem: Ebisawa may be out of it, but his murderous left hand is wide awake and itching to dice them to bits! Scores are settled and parallel stories spiral and coll...

After all her hard work and hard-fought wins, Natsuo finally stands across the cage from the girl who has vexed her from the start-intolerable, unacceptable Yuzuko Mawatari. Fresh off of dispatching Doona Park in monstrous and off-puttingly cheerful fashion, she beams at Natsuo from the opposite corner, just as excited for the chance to finally meet in the ring. It's time for these girls to have a conversation.

Having secured her place in the final round of the tournament, Natsuo's goal of pummeling Yuzuko's insufferable little face is finally within reach. Relieved and exhausted, she falls asleep in the locker room…but as the cage door closes on the remaining semifinal match, Yuzuko's place in the final match is far from assured. Unbeknownst to Yuzuko, her opponent has an ace up her sleeve-a unique attribute and a skillset tailor-made to defeat her.

Three dismembered bodies were found in an abandoned basement parking garage, sliced limb from limb while they were still alive…and if the boy who discovered them is to be believed, the murders occurred in an impossibly short window of time. Nothing is adding up for veteran detective Fukami of the East Fukuyama police department, and his gut is telling him the boy is hiding something. In fact, he's quite certain that Tatsuki Hirokawa saw exactly what happened, and who did it. But what the b...

Even as Tatsuki and his classmates mourn the deaths of his friends, his father-Councilor Hirokawa-advances his plans with the strange creatures hiding amongst the population of East Fukuyama City. Welcoming the arrival of these new apex predators to save the Earth from the excesses of humanity, he offers to use his influence to help them spread and feed while staying under the authorities' radar. But not all of the creatures are in agreement about following his plans, or for the need to ki...

After another classmate is found dismembered, Tatsuki agrees to cooperate with the detectives. He shares what he knows about the strange creatures living in their midst, preying on the unknowing public, even while carefully omitting their connection to his father. As far-fetched as it all sounds, the two have good reason to believe him-elements within the National Police have long suspected the same. But something still isn't adding up for Fukami-the student murders feel uniquely cruel…uni...