Kaya Saimori

Born to Shinichi and Kanoko Saimori, this entitled young woman serves as the difficult half-sister to Miyo Saimori. While she maintains a polite and charming facade in public, she is secretly a two-faced individual who treats Miyo with profound emotional cruelty. Driven by a spoiled and abusive nature, she frequently displays her true, disrespectful personality toward both her sister and her fiancé, Kouji Tatsuishi, whenever she believes she can escape consequences.