Don Valentino reigns as the cunning patriarch of an Italian mafia family whose members are entirely non-human. Resembling a goat with piercing yellow eyes and standing at 66 cm, he masterminds counterfeit currency schemes while consuming authentic banknotes—especially Japanese yen, which he considers a culinary delicacy. This obsession propels his expansion into Japan, where he relocates to feast on the local currency. A childhood grudge from the fairy tale *The Wolf and the Seven Young Goats* fuels his vendetta against wolves, intensifying his rivalry with Hiroshi Inaba, a half-wolf detective. Despite meticulous planning, his schemes often unravel due to distractions over minor inconveniences. Loyal subordinates execute his will: Lorenzo, a masked samurai-styled enforcer who hides his face beneath a burlap sack; Gabriella, a knife-wielding assassin obsessed with targeting the vertically challenged; and Noah, a teen prodigy engineering lethal gadgets and bioweapons. Though prone to comedic mishaps and eccentric whims, Valentino upholds a strict moral code—forbidding harm to civilians and shielding allies, even intervening to halt Gabriella and Noah from overstepping his orders. Outside crime, he finds solace in domestic routines, hosting tea parties with his inner circle. His plans frequently collapse due to tactical blunders or Hiroshi’s interventions, yet his guile and luck ensure perpetual evasion of justice. No explicit history explains his caprine form or rise to power, though his seasoned tactics imply decades of underworld dominance. Across all portrayals, he remains a stubbornly static foe—a persistent thorn in Hiroshi’s side, never evolving beyond his role as a flamboyant, bumbling antagonist.