Nocturnal Partner

Eun-Beom, a student on leave from school who barely makes ends meet by working part-time during the day and driving for a taxi at night, is visited by Joo-Hyuk, who confessed to him in the past but was rejected. With Joo-Hyuk's help, Eun-Beom gets a job as an intern at a pharmaceutical company, but through the existence of 'Carbo', he learns that the company was created by the vampire Lord. To make matters worse, he develops a strange relationship with Director Ian, Lord's right-hand man, and Eun-Beom's days continue to be unusual...

The story of a full-fledged vampire cartel and Eun-Beom, an ordinary gay man caught up in it.

(Source: Kakaopage, translated)