Hiroto, who broke the military alliance between Hybride and Agnika, is going to Gassel as Hybride's envoy but ends up being tasked by Queen Ismir of Gassel to remind Gudrun, a countess who despised him vehemently while feuding with the reigning Queen Astorica for the crown, over the mountain urchin taxes. Back at Hybride, the kingdom is suffering a alum stone shortages crisis when one of its mines is destroyed by a flood; to make matters worse for Hybride, a new aluminite mine is discovered but it is located at Agnika. At Gudrun's territory of all places. Ergo, both Gudrun and Astorica are exploiting this new resources as a bargaining chip to coerce Hybride to comply their respective requests.
This volume provides examples of:
- All of the Other Reindeer: Gudrun is this among all of aristocrats within Agnika.
- Call-Back: Gudrun is reading her butler's report about Hiroto that mentions several events from past volume.
- His "arrival" in this world from Volume 1.
- Phyllis Army's gruesome defeat at Volume 6 that brought Hiroto and the vampires into the spotlight across the continent.
- Magia's failure to contain Hiroto thrice from Volume 13 to Volume 15's first act.
- Freyas's defeat by Hiroto in Volume 15's second act as the late Moldias's revenge for his humilliation.
- Several events in Volume 19 where not only Hiroto managed to solve Magia's compensation issue, but also causing a downfall of Hydran and Belffergo.
- She also learnt about Hydran's humilliation where he forced to kowtow to the vampire after his mansion was destroyed.
- Contrasting Sequel Antagonist: Gudrun is this when compared with the likes of Hydran and Belffergo from the last book.
- Cliffhanger: The book ends this way when Hiroto decides to visit Agnika himself despite Leonidas and the Privy Council (except Univestel who views that is a pragmatic way to secure Hybride and its future) were against this idea as they view him as a hero to Hybride.
- Evil vs. Evil: More like Ego vs. Ego, the feud between Gudrun and Astorica are this despite they both despise Hybride.
- Jerkass: Both Gudrun and Astorica are this in their own way. In their own ways.
- Please, Don't Leave Me: Leonidas tells this to Hiroto out of fear that him leaving Hybride for Agnika will bring bad luck to him.
