Infinite Dendrogram novel Volume 9 features story by Sakon Kaidou and art by Taiki.

The battles around the ruins are intensifying. Two agents from Dryfe enter the stage, and the superweapon built to be the hope of ancient humanity is on the verge of awakening. The threats to the kingdom force the masked princess to reveal her power, while the demon lying dormant within Ray's bracers waits for her time to show herself. The Quartierlatin County is in grave danger, and it's up to Ray and his allies to stand and protect it.