Sonic Line will make his debut this Sunday at Sapporo. He is a well-bred horse with a distinguished lineage, being a sibling to the three-time Mile G1 winner, Songline. In his final workout, he broke away from a group of three, finishing two lengths ahead. Assistant trainer Abe commented, "There's no negative impression. He has been training extensively and steadily improving." Following in the footsteps of his illustrious sibling, he aims to make a statement by winning its debut race.