Licht and the gang escape from the clones of A-class and Pele, the traitorous Ace of Piercing Strikes! But Lynn stays behind, swearing, "I'm bringing you back with me, no matter what...!!"

Lynn stands alone before the traitorous Ace of Piercing Strikes, who has gone undefeated for three hundred years. Will the bonds she forged be enough to retake what is most important to her? Meanwhile, Tokikaze has lost control of Althing, instantly putting his rebellion in danger as the Special Unit retaliates against the children of the Abyss. Beset by foes on every side, the gang’s only chance to defeat Schmerman is for Licht to reclaim the legendary Ballot he used during the Waste War, but the clones of Class A stand in the way…!

Tokikaze is alive, and he’s more interested in revenge than reunions. Abducting Hina and stealing the Original Ballots, he and the Abyss launch an all-out war on Alcia! Just what is he planning, and how does Hina fit into the equation? As the three-hundred-year-long peace comes to an end, a wounded Licht must ally with old enemies if he is to have any hope of defeating his old friend!

Captured by Douan and the Special Unit, Hina, Lynn, and Pele are brought face-to-face with Major Schmerman. What happened to the kind teacher of three hundred years ago? What did Douan experience during the war? And is Licht really dead? The gang searches for answers as the battle for Alcia heats up!

Class is in session! As newly enrolled students of Special Military School #13, the gang must plunder stars in order to become soldiers-a title the perpetually hormonal Rihito couldn't care less about. While juggling studies and military training, Jail and the others begin to look for the meaning behind their mysterious time slip, only to come across the school's disturbing connection to the Aces...

Finally, the Waste War begins! As outside forces start to obliterate the school, the members of Class A-including Tokikaze and Jail-dive headfirst into an enemy-infested area to protect their friends. Meanwhile, an unconscious Rihito undergoes a risky operation far removed from the chaos outside. Will the blissfully unaware Ace-to-be make it in time to save his comrades?!

In the world of Alcia' where rank is determined by "counts" a young girl named Hina scours the land for the fabled Ace-the legendary hero of the Waste War. With only the last words of her missing mother to guide her search' she wanders from town to town until she meets Licht' a clownish masked vagrant with a count of --999. Girl-crazy and unpredictable' he's the exact opposite of a hero...or at least' that's how he appears...