``` [You appeared in the Regent's reception room.]
[Behind the desk ahead, the masked man was whispering to the young, handsome Regent, occasionally glancing at you with a slightly surprised expression.]
[Bored, you turned to survey the room.]
[Several enormous murals hung on the four walls of this lavishly decorated hall. Each depicted interactions between various figures in the style of classical oil paintings.]
[Looking through them in order, you soon discovered that their central figure seemed to be Cain, the Progenitor spoken of among the Blood Clan.]
[Just a few paintings told the story of Cain, Abel, and the god who passed by. The god showed favoritism toward one of the brothers, and in the end, Cain stabbed Abel to death, enraging the god, who cursed him and exiled him to a land of despair... This was almost identical to the story you had pieced together from the Progenitor's diary.]
[But the murals' storyline did not end there. There was one more painting after that.]
[In the final painting, a woman appeared, dressed in blood-red clothes, with a noble bearing and a faint shroud of Holy Light around her. Cain knelt before her, weeping bitterly, while the woman smiled and helped him up like a loving Holy Mother...]
["Heh, interesting..." As you were pondering the meaning of the final painting, the Regent suddenly chuckled, rose, and walked toward you, clapping his hands.]
["Although you resorted to a few clever tricks, I have to admit that you completed this task perfectly." The Regent approached you with a smile and took out an exquisite jade vial.]
["Here is the sourceless heart blood I promised you. I keep my word." The Regent handed you the jade vial.]
[You obtained sourceless heart blood ×1. Generation: 6th generation. Can lower the generation of vampires