Harold is from a visual novel called Blood in Roses.

Harold, also known as "Dark Lord of the Night" was the previous owner of Hotel Libra Sincera. During his reign over the castle like hotel, he met Tatiana, a young witch who had ventured from the other side of the forest. Tatiana claimed that vampires were destroying her village and attacking her people. With this encounter, Harold agreed to call back his vampires on one condition: Tatiana must stay at his hotel and live with him. Shortly after, he developed romantic feelings towards the witch and eventually became her lover. From their love, the two created Rosapast: A magical rose that protects the hotel. 

Unfortunately, the two could not live in happiness very long. After retuning to her village one day, Tatiana was attacked and tortured by the people she had saved. She passed away, and Hrold was left with fury and immense grief. Harold later took off from the hotel, afraid that he would destroy what he and Tatiana had created together: a hotel where all species could gather and get along. In order to protect the hotel he created a will: "He who is loved by Tatiana's descendant will inherit the hotel." 

Harold is the progenitor of vampires, and because of that, is the most powerful vampire in existence. Many vampire families respect Harold and his blood line, treating them with respect as they are considered royalty. At a first glance, he may seem very prideful, cold, and distant. Due to his many years of living, Harold has lost touch with most of his emotions due to the fact that he has lost multiple people close to him.

Voice: Medium to deep pitched range, strong, possibly a bit intimidating or cold