Looking for a manga

Can someone please help me find a manga ╥﹏╥. It’s about mythical beings having bounties but there’s a mythical creature/being agency that finds these beings and gives them safety since some people want to just sell em. The main character is like a s class bounty cuz he’s a pure blood vampire. I know the first few chapters they save a unicorn boy, a siren and her sister, and a gargoyle. The main guy is like looking for his petrified lover???( real vague now) pleaaassseee help me it’s prob some obvious basic title but for the life of me I can’t remember ╥﹏╥