Suspicious Clients

I thought it was a comedy movie, but actually it touched my heart.
It was about a businessman, working at an insurance firm, trying to change his occupation but captured at an issue that he must solve and move on.
He signed several clients in order to win the MVP of the year - selling the largest number of insurance - but those clients were in danger of committing suicide. And if those clients commit suicide within 2 years after signing the document, the firm have to pay them back - death insurance. So the main character, Byeongwoo, visits the clients one by one and help them to escape from depression or difficulty they face in life.
I tried not to cry, but when it came to illustrate about mother story, I cried very much silently. I thought the movie was fantastic, even though I did not wanted to see the movie strongly.