I don’t remember if it was mtl’ed or from novelupdates. But it’s quick transmigration and bl. The male lead is a vampire hunter and the main caharacter is a vampire that has lost a it memory. from what is remember, the vampire wants to find out what happened and meets the drunken Ml that takes pity on him. The ml helps the mc even though the mc is a vampire, and tries to protect him from discovering the vampires have been killed. The mc is royal prince and the human church? Framed the vampires? And they were killed.