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.

On 3 November at Kyoto Racecourse Loves Only You began her track career in an event for previously unraced juveniles over 1800 metres and won from Arden Forest.

[8] Twenty-two days later at the same track the filly started the 1.3/1 favourite for the Shiragiku Sho over 1600 metres in which she was ridden by Yasunari Iwata and won by one and three quarter lengths from Rambling Alley.

[11] On 19 May Loves Only You was stepped up in class and distance for the Grade 1 Yushun Himba over 2400 metres at Tokyo Racecourse in which she was partnered by Demuro and started the 3/1 favourite.

Curren Bouquetd'or went to the front approaching the last 400 metres but Loves Only You produced a sustained run on the outside to gain the advantage in the final strides and win by a neck with two and a half lengths back to Chrono Genesis in third.

After the race Demuro said "I was a bit worried at the final corner since we were in a lower position than planned, but she showed an incredible burst of speed and stretched beautifully.

[16][17] The filly returned to Japan and made her 2020 debut on 17 May when she started 8.5/1 third choice in the betting for the Victoria Mile at Tokyo, but after racing in mid-division she struggled to obtain a clear run and came home seventh behind Almond Eye and Sound Chiara.

[18] The filly dropped to Grade 3 class and matched against male opponents in the Naruo Kinen over 2000 metres at Hanshin on 6 June when she started the 0.8/1 favourite but was beaten a nose by the eight-year-old Perform A Promise.

After a five month break Loves Only You returned to the track at Tokyo in October and finished fifth behind Salacia when favourite for the Grade 2 Fuchu Himba Stakes over 1800 metres.

After racing in eleventh place she produced a strong late run on the outside and finished third behind Lucky Lilac and Salacia, beaten half a length by the winner.

[19] The filly ended her season in the Arima Kinen over 2500 metres at Nakayama Racecourse when she started the 14.5/1 sixth choice in the betting and came home tenth of the sixteen runners behind Chrono Genesis, beaten six lengths by the winner.

[23] With this win, this marked not only her second GI victory, but also finishing the race where the top four were Japanese-trained horses (Loves Only You, Glory Vase, Daring Tact, and Kiseki, in respective order).