After the modern gold medal killer died unexpectedly, he time-traveled into the body of a little girl with the same name.
The poor little boy had his gender hidden and was raised by his widowed mother. Fortunately, he was taught by an immortal master and was able to enter the immortal sect. However, before he finished his studies, people sent by his father's family slaughtered all those close to him.
The little poor man escaped capture by chance and has since embarked on the path of cultivating immortality and seeking revenge.
Intent: A story about a girl with a blood feud who overcomes many obstacles, becomes an immortal, takes revenge, and saves the world.