She was from the third 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] Ayusan began her track career in a contest for previously unraced juveniles over 1400 metres at Tokyo Racecourse on 6 October and won from Hishi Last Guy and eleven others.

Despite her defeat she was moved up to the highest class for the Grade 1 Hanshin Juvenile Fillies in December and came home seventh of the eighteen runners, four lengths behind the winner Robe Tissage.

Kurofune Surprise started favourite, while the other sixteen runners included Red Oval, Crown Rose (Fairy Stakes), Tosen Soleil, Meisho Mambo, Robe Tissage and Collector Item.

She finished last of the fifteen runners behind Just A Way in the Nakayama Kinen over 1800 metres in April and then ran eleventh in the following month at the same track in the Lord Derby Challenge Trophy, five lengths behind the winner Curren Black Hill.