Sometimes what we see is not necessarily true, and light and darkness are often interchangeable.
Song Ran believed that all vampires were not good things, but when he met Gu You, his heart covered with revenge loosened. He was very happy during the few years he got along with Gu You, but he was an elite in the organization and shouldered the hope of killing the vampires and reviving humanity. When he hesitated, the war broke out again. He and Gu You were separated. He didn't know how to choose between humans and vampires. What would happen in the future?
The upright and calm human warrior Song Ran x the smart and uninhibited vampire noble Gu You
Concept: Interweaving of light and darkness