Sonata amamiya (formerly known as sonata kanzaki) is a renowned prism star who accomplished the legendary leap, aurora rising. despite believing that the jump she executed was false, she felt compelled to discover the genuine essence of aurora rising. consequently, she forsook her family, including her spouse ryutaro and daughter rizumu, 12 years prior to aurora dream. during her training in russia, sonata encountered kaname chris, whom she took under her wing as an apprentice and adopted child to prepare for the true aurora rising leap.