Reborn as My Little Sister's Guardian

Once the world's most feared assassin, Lin Feng lived a life drenched in blood and shadows. But fate grants him an unexpected second chance—reborn into a peaceful world where his greatest challenge isn't eliminating targets, but raising his adorable little sister who won't stop clinging to him for hugs. From cold-blooded killer to doting big brother, can this legendary mercenary survive the ultimate mission: fatherhood?