Unmatched Radiance, the Moon Goddess Is So Arrogant

In her previous life, her parents divorced when she was seven after her father had an affair. They each started new families, leaving her as the unwanted extra. Neither parent cared for her, so although both were alive, she was practically an orphan. At seven, she resolved to join the world's most famous assassin organization. She learned all kinds of skills and tempered herself in the darkness, eventually becoming the youngest top-ranked assassin in the organization's history. In that cold and heartless place, she also found a lifelong confidante and partner. During a mission, her partner gave her life to save her. After the mission, the girl took her own life to follow her partner. But perhaps fate had other plans: she transmigrated into the body of a ten-year-old girl. She swore that in this life, she would rise to the very top of the pyramid, all to protect those she loved and those who loved her. Thus began her legendary life.