She was from the eleventh 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.

[4] Akaitorino Musume made her debut in a contest for previously unraced two-year-olds over 1600 metres on Going at Niigata Racecourse on 2 August when she started the 1.5/1 favourite but came home seventh of the eighteen runners behind the colt Havasu, beaten more than seven lengths by the winner.

Takeshi Yokoyama took the ride when Akaitorino Musume started favourite for the Akamatsu Sho over the same course and distance on 22 November and won by one and a quarter lengths from May Thousand Hour after coming from ninth place on the last turn.

[5] On her first appearance as a three-year-old Akaitorino Musume was moved up to contest the Grade 3 Daily Hai Queen Cup (a trial race for the Oka Sho) over 1600 metres at Tokyo on 13 February when she started 3.9/1 second favourite behind Kukuna.

Ridden by Tosaki, she settled behind the leaders before taking the lead inside the last 200 metres and prevailed in a tight finish, winning by a neck from Art de Vivre with Kukuna, A Shin Hiten and Isn't She Lovely close behind.

[10] On 15 November Akaitorino Musume was matched against older fillies and mares in the Grade 1 Queen Elizabeth II Cup over 2200 metres at Hanshin and started second favourite behind Lei Papale.

[11] Akaitorino Musume was set to run at the Hanshin Himba Stakes on April 9 of that year, but cancelled the race at the last minute due to her right rear leg becoming lame.