A Shin Aster is a 2-year-old filly from Japan, trained by Uto Hideki. She is the offspring of the stallion A Shin Top and the mare A Shin Lavender. A Shin Aster has not yet achieved a maiden victory, having participated in six races without a win. In her latest race at Nagoya on October 3, 2024, she was ridden by Satoshi Hosokawa and did not place, finishing behind the winner.