Mitsuru Oshiro

The small village surrounded by mountains had no disasters, was blessed with crops, and everyone supported each other every day. The reason such a miracle was possible was thanks to the existence of a monster named Doumeki who lives deep in the mountains. The villagers began offering tribute to Doumeki-sama, who hates humans and doesn't go out in public. To keep him from leaving the mountain, one day, they decide to sacrifice a human girl…

As a descendent of Medusa, Nako Tobata's gaze is imbued with paranormal powers...

Asuhara Gin is a highly promising young detective with exceptional physical abilities. However, after a certain incident, he forms a subordinate-master contract with veteran detective Mera Shūsui. Together, as an unlikely and twisted detective duo, they hunt down brutal criminals—including cooperating in “collecting the blood of criminals” as part of their pact. Their main target becomes “Z,” a horrific serial killer. The contract and their pursuit thrust Gin into the dark depths of the criminal world, challenging both his morals and his survival. Gin must balance the demands of his new master, the dangerous pact, and the horrors of a relentless investigation. Original Webtoon