Manga by author 星空社 - Status ongoing

Certain lovers are selected anonymously, only to find a strange symbol etched to their necks. Once those who are selected get too close to each other, or within the "Danger Zone," one of them will die an explosive death. Suspicion, scheming, and murder Once star crossed lovers, now enemies, willing to kill each other without hesitation Ning Yuan, a young emotionless man, is suddenly thrust into this cruel game of death. How will he protect his "Soulmate"?

What kind of sparks will fly between an angel and a devil? What is the feud passed down through generations of vampires and werewolves? How does a mermaid and a fairy date? On a continent where many races coexist peacefully, any kind of gay romance is possible!