The Last Word of the World. Book 1

Civilization as it was once known is dead. Due to a failed scientific experiment, half of humanity disappeared from the face of the Earth, while the other half was divided into two warring races: cyborgs and animal spirits.
To fulfill a friend's dying wish, cyborg Heytun Shi must deliver a mysterious mask to the animal spirits, which will help them restore the former world. However, they mistakenly take Heytun Shi for their deceased comrade. The mercenary is in no hurry to reveal his true identity, as the price for this could be his life…