Densetsu no Ansatsusha, Tensei Shitara Ouke no Aisare Suemusume ni Natte Shimaimashite

Tot was a legendary assassin in the criminal underworld, sold by her parents at a young age and raised under brutal conditions to become a flawless killer. Having never experienced familial love, she lived a life defined entirely by violence. Her story abruptly ends when she sacrifices herself to save a stray cat. Because of the countless lives she took, Tot is destined for hell, but that single act of compassion grants her an unexpected second chance. She is permitted to reincarnate and is reborn as Patricia, a princess of the royal family. Along with this new life comes a divine mandate from God himself: she must protect her new family at all costs. Though she expected to begin again as a helpless infant, Patricia quickly discovers that her lethal skills have carried over into her new body. When assassins target the crown, she uses her unparalleled expertise to eliminate them one by one. Yet, as she fights to defend the royals, something within her begins to shift. Surrounded by family members who offer her unconditional affection simply because she belongs to them, Patricia finds herself awakening to unfamiliar emotions—a genuine desire to protect the people who have finally shown her what it means to be loved.