I'm looking for an asian tv drama that was aired between 2000-2007

Here are some things I remembered on the protagonist

1. He is a family man
2. He works in the morning by delivering newspaper
3. He found and brought a missing granny to the police station
4. He was invited by the family of the granny to a dinner and they suggest that he should marry their daughter
5. A old woman who owns a company wants him to be her successor
6. He was diagnosed with cancer and I can't remember if he died in the end

Two words I vaguely remember in the title:
Grass
Green