In the Aliope Empire, where divine beasts exist among humans, the Munreffe Duchy, one of the four great ducal houses, fell out of favor with a divine beast for reasons unknown, and lost its protector. The young duke, Edinburgh, determined to save his dying house, attempts to summon an ancient creature to take the divine beast’s place… He swears a solemn vow: whatever monster appears, no matter how fearsome, he will tame it and and make it his divine beast. But the one who actually shows up is— "Pii-ya!" A tiny, pitiful baby dragon that hasn’t even shed its eggshell?! And the moment Edinburgh casts a translation spell, the very first words out of its mouth are— "Pii-ya… Pii-yaa pii… (Husband… Please don't eat me…)" Can Edinburgh really save the Munreffe Duchy by turning this baby dragon, who immediately calls him “husband,” into a divine beast?