The Jianghu Chronicles of Nian Xiaonian

Ordinary girl Nian Xiaonian transmigrates to another world and becomes the doctor and cook for a group of assassins. Then she leaves the assassins behind and ropes in a kindhearted young rich man as her bound teammate, setting off to help him find his fiancée. But by accident, she boards the wrong ship, and what began as a martial arts tale takes a rather different turn...