Zhen: Tenrou no Me

In this country live beautiful creatures sharing aspects of both birds and people. They're called Zhen, and their utmost pride lies in the vivid hues of their wings, born from the toxins of the poisonous foods they love to feast upon.

Tianlan is a Zhen grief-stricken from the death of his lover. He finds a captured thief called Lui put into his charge, whom by completing a mission will be spared of his execution.

(Source: Printemps Shuppan, translated)