The curtain may have fallen on the King of Orchestras, but Franklin’s game is only just warming up. In order to save the City of Duels, Ray and his companions will now have to face an old ally—the Magingear pilot Hugo Lesseps—and unravel the enigma of his Embryo’s icy powers. And that’s not nearly the last trick the Giga Professor has up his sleeve... When sinister schemes clash with unwavering conviction, who will emerge victorious?

In a world of infinite possibilities, how would you choose to live?

After an unexpectedly challenging journey, Ray and his party finally arrive at Gideon, The City of Duels. The mere sight of the towering arenas and thriving fantasy townscapes is enough to instantly awe and enchant him. However -- like anything that stands tall and proud -- the city cast a great, dark shadow. The name of this shadow is the Gouz-Maise gang -- a loathsome band of cutthroats who turn their profit kidnapping children and demanding ransom. Ray, wide-eyed and innocent, was blissfully unaware of just how cruel the hyper-realistic world of Infinite Dendrogram would become.

An AI looks into the past, at an event long before Ray Starling set foot in the world of Infinite Dendrogram. The unstoppable Tri-Zenith Dragon emerges from the mountains. It is a bringer of death, wielding a miasma of desolation in its wake. The citizens of Altar can do nothing but watch as doom descends upon them. However... There are three who may be up to the challenge. Three Masters who, if they managed to work as one, could stop the imminent desolation of the land they call home. But with so much glory to gain, what could they stand to lose?

"First published in Japan in 2018 by Hobby Japan, Tokyo."--Colophon.

Ray finds himself kidnapped by The Lunar Society, and is approached by their spiritual leader and the last Superior of the kingdom -- High Priestess, Tsukuyo Fuso, who begins to unfurl her nefarious scheme.

The City of Duels is Heating Up! A challenger from Huang He comes to duel Figaro, the local legend. As luck would have it, Ray just so happens to have a front-row seat! Both of these Masters wield powerful Superior Embryos and have no intention of losing. Who will be left standing at the end of this ferocious encounter? As the duel comes to a close, a shadow looms over the city of Gideon. Mr. Franklin, the Giga Professor from the Dryfe Imperium, makes his terrifying debut! The sadistic scientist sets his sights on throwing the city into utter chaos. Unfortunately for him, Ray, Marie, and Rook aren't about to go down without a fight! Outmatched, outnumbered, and outsmarted, the knights and Masters of the Kingdom of Altar swiftly prepare to retaliate. Will their fighting spirit be enough to defeat this mastermind?