Infinite Dendrogram Novel Volume 12 features story by Sakon Kaidou and art by Taiki.

Gideon, City of Duels, is bustling with life! A great celebration is underway, and a grand duel is about to take place. At Azurite's behest, Ray accompanies Xunyu on an escort mission to the great City of Duels. Meanwhile Hannya, the devilish berserker, is finally freed from the Gaol. She has only one thing on her mind: visiting her beloved (and oblivious) Figaro! Thus Gideon becomes the backdrop to the convergence of many stories, and many forms, of love.

Infinite Dendrogram Novel Volume 13 features story by Sakon Kaidou and art by Taiki.

Dryfe offers an olive branch to Altar, but just what will the price of peace truly be?

Hoping for the best, but expecting the worst, the Altarian government begins its preparation for the coming negotiations. Altimia needs to decide on her kingdom's terms and gather her retinue, while Ray needs to choose a new job and join a clan in case the talks go sour. Of course, the imperium isn't just resting on its laurels, either. As its leaders craft their plans, a vorpal blade flashes in the darkness, and a rabbit-shaped shadow hops out of the northern land on a top-secret mission to the southern kingdom...

Infinite Dendrogram novel Volume 11 features story by Sakon Kaidou and art by Taiki.

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?