Transmigrating into a seven-day-old newborn orange cat Jiaojiao, she unexpectedly receives an official appointment as the healing ambassador of Qingshan Prison. Relying on her soft and cute appearance, she completely transforms the oppressive atmosphere of the cold prison ward. Former basketball player Zhang Zhuang was imprisoned for excessive self-defense during his search for his daughter, sealing off his heart for years, yet he achieves mutual redemption with Jiaojiao. Amidst the healing cat's companionship, a group of inmates regain hope in life and acquire skills to turn over a new leaf. The heart-shaped birthmark on Jiaojiao's neck untangles a twelve-year-old story of searching for family roots, ultimately welcoming a warm ending of love and reunion.