She was from the ninth crop of foals sired by Deep Impact, who was the Japanese Horse of the Year in 2005 and 2006, winning races including the Tokyo Yushun, Tenno Sho, Arima Kinen and Japan Cup.

[3] Danon Fantasy's dam Life For Sale was a top class racehorse in Argentina where she won twice at Group 1 level[4] before being exported to Japan at the end of her track career.

[5] Danon Fantasy made her first appearance on 3 June in a contest for previously unraced juveniles over 1600 metres at Tokyo Racecourse and finished second of the fifteen runners behind Gran Alegria.

Belle Soeurs set the early pace from Meisho Shobu with Danon Fantasy being settled towards the rear before being switched towards the wide outside on the final turn and making rapid progress.

Meisho Shobu took the lead in the straight but Danon Fantasy gained the advantage 100 metres from the finish and repelled the challenge of Chrono Genesis to win by half a length, with Beach Samba a neck away in third place.

[15] In the Shuka Sho over 2000 metres at Kyoto on 13 October Danon Fantasy started the 2.5/1 favourite but after racing in third place for most of the way she dropped from contention in the straight and came home eighth of the seventeen runners behind Chrono Genesis, beaten seven lengths by the winner.

[6] On 26 December, Danon Fantasy ended her campaign in the Grade 2 Hanshin Cup over 1400 metres in which she was matched against male opposition and started the 8.6/1 fourth choice in the betting behind Indy Champ, Stelvio (2018 Mile Championship) and Fiano Romano.