In the year 2043, Infinite Dendrogram, the world's first successful full-dive VRMMO was released. In addition to its ability to perfectly simulate the five senses, along with its many other amazing features, the game promised to offer players a world full of infinite possibilities. Nearly two years later, soon-to-be college freshman, Reiji Mukudori, is finally able to buy a copy of the game and start playing. With some help from his experienced older brother, Shu, and his partner Embryo, Reiji embarks on an adventure into the world of Infinite Dendrogram. Just what will he discover and encounter in this game world known for its incredible realism and infinite possibilities?

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.

The day after Ray and Hugo faced off against the vile Gouz-Maise Gang, the city of Gideon was far livelier than usual, brimming with excitement and anticipation for a certain event. As one would expect from a metropolis bearing the title of "city of duels," the event was a match between two highly notable duelists: Figaro—the local hero—and Xunyu—one of the most powerful individuals from the far-east empire of Huang He. Both were Masters wielding the powers of Superior Embryos, and both would give their all to fight, make merry and emerge victorious. But a malicious plan unfurls itself in the shadows, who is it that seeks to strike the Kingdom of Altar at its most vulnerable? More importantly, who will survive the Clash of the Superiors?

The city of duels is suddenly besieged by one of the Dryfe Imperium’s Superiors. Mr. Franklin, the Giga Professor. Both admirably cunning and incorrigibly heinous, the sadistic scientist sets his sights on throwing Gideon into utter Pandemonium. As luck would have it, Ray, Marie, and Rook are caught right in the middle of his malicious machinations. Though outmatched, outnumbered and outsmarted, the knights and Masters of The Kingdom of Altar don't hesitate to retaliate. They have the spirit, no doubt, but will it be enough to defeat the mastermind of Franklin's Game?

Thanks to Ray and his allies, the chaos in the city of duels is gradually abating. However, Giga Professor Franklin is far too obsessed with victory to let it end so easily... “Plan C!” he cries, as he plays yet another ace up his sleeve. But as Franklin stands proud, watching Gideon—and the kingdom with it—face utter destruction, a certain man moves out to show the Giga Professor the true meaning of the word.

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.

Ray's arrival at Torne coincides with the beginning of the Windstar Festival, a joyous occasion that commemorates the defeat of an ancient evil. But the mischievous hands of fate twist the celebration into a birthday. The once-slumbering entity has returned, and it is now ready to unleash chaos, suffering, and despair upon all in sight. Naturally, Ray Starling is not a man who can allow such a creature to exist. The stars look down, the wind howls... but Ray soon finds his struggle intertwining with the life of a certain PK, and the matter of the missing Master. Only one thing is certain in the carnage: They need a miracle.

Having maxed out his Paladin rank, Ray considers what job to take and level next. As he does so, he hears of a job that was newly excavated alongside an ancient ruin in Altar's Quartierlatin County—an area bordering the Dryfe Imperium. As it happens, Ray already meets the conditions for the job, and it suits him well, so he wastes no time going out to make the switch. But of course things are never quite so simple... Along the way, he encounters Azurite—a mysterious masked swordswoman. There was simply no way Ray could've known the far-reaching political implications of his venture to the ruins...

世界最強クラン＜セフィロト＞登場！！ 【エルトラーム号】の事件を終え、カルディナの首都に辿り着いたユーゴー。 しかしユーゴー達の休息は、妖精郷から来訪した〈超級〉によって終わりを告げる。 同じ頃、カルディナ最南端の都市ではグランバロアととある交渉が行われ―― 国家と国家、〈超級〉と〈超級〉の思惑が交差する!! 予測不能の展開が巻き起こる第23巻！

原作1巻でレイが初めてフィールド狩りをした時に描かれた、乳母車、地雷原、鎖鎌使い。その三人はパーティを組んで彼らの冒険を始めていた――!※原作6巻発売時、BOOK☆WALKERにて限定有償販売された小説＜童話分隊＞の再録になります