Richard Hannon's young filly made a seamless graduation from winning a Listed race at Sandown last month to securing victory in this Group Three over seven furlongs.
Dane O'Neill executed a no-nonsense ride aboard the 10-1 chance, who was sweetly pitched towards the stands side rail from the get-go.
Tajaanus continued to improve as the race went on and ended up winning by a snug length from Juliet Capulet.
Poetic Charm, the 11-4 favourite, was disappointing.