En is still trying to settle into his vampire life, learning more about vampires, going on jobs with his guardian Ichii, and trying to decide if he wants to choose him as his partner. But there are mass murders happening at illegal pairing parties, the dangerous culprit still out...
En has just been turned into a vampire, with Ichii as his guardian to show him the ropes. As he helps Ichii make his blood deliveries during the week, he learns about the difficulties of vampirism, but he also makes friends and starts feeling something for...