Blood-drinking Always Works

To find the truth of her brother's death, young girl Chu Ye is accidentally involved in a fantastic world of oil painting, in a world ruled by vampires, humans are nothing but meals. Accidentally saved by the vampire hunter Edward, Chu Ye finds that he is actually a vampire?! Then why does he stand by humans' side? Why is Chu Ye's brother missing? This is a different love story between a human and a vampire!