Vampire mother Camila, severely wounded while protecting her daughter, tearfully entrusted her five-and-a-half-year-old daughter Lilian to her servant Victor as she set out to find her never-before-measured father, Arthur Black. Arthur was being beaten and robbed of his inheritance by relatives, suffering from a terminal illness with only three months left to live. The adorable Lilian stood resolutely before her father, reprimanding and driving away the attackers; through her first embrace, she transformed her useless father into a powerful vampire and cured his terminal condition. Together, father and daughter turned the tide from despair—Arthur rose through bloodshed in an underground boxing tournament, reclaiming his wealth and dignity. Meanwhile, fraudster Serena had laid a trap to deceive Arthur into marriage and wealth, but Lilian exposed her scheme, triggering revenge from vampire hunters. Ultimately, Arthur fought his way to save his wife and daughter, reuniting the family. From a useless old man to a fierce guardian, he achieved his transformation through the bonds of love and blood.
