This is an alternate world where beast taming is the mainstream.

Animals, plants, elements, undead, machines... Nine-tailed Flame Fox, Ancient Tree of Life, Thundercloud Sprite, Skeleton Monarch, Mechanical Ship Maiden, and even antique swords and blades that have developed spirits can all become pet beasts. The humans who contract, nurture, and command them are collectively known as beast tamers!

Mythologist and archaeologist William Carter has transmigrated here. To explore the blank pages of history and lost myths, he chooses to embark on an extremely unscientific path of beast taming...