She traveled through time and became a snake demon.
He was originally a thousand-year-old white snake.
Seeing making money as her biggest hobby, she joined hands with him, a novice in life, to break into a new world, reselling food, brewing and selling wine, and making rouge clothing...
There is also a charming eldest sister, a sad little sister, a straightforward little brother, the three closest family members have constant accidents, and the little snake lives a scary but happy life.
What kind of waves should the ex-lover who is already married and has children and the gentle richest man stir up in the little snake's life?