The Mad Sister 2

Genius Mercy Diamond, an only child who yearned for a sibling, faced a harsh upbringing. Her father, a physician, engaged in infidelities, while her mother remained uninspired and isolated until the arrival of baby Roxy, who became the center of Mercy's universe. Tragically, Roxy died in a house fire at the age of five, propelling Mercy into a profound grief that ignited her pursuit of justice and excellence in medical school. Motivated by the memory of her cherished sister, Mercy emerged as a formidable force in the medical field, crafting a powerful robotic homage to Roxy. Feeling unloved and desperate for recognition, Mercy was resolute in her quest to avenge her sister's premature demise.