Actor Kim Woo Bin was as natural as can be on his appearance on MBC's "Four Sons and One Daughter".

The March 28th episode of "Four Sons and One Daughter" was filmed in Choon Chun and will feature guest Kim Woo Bin as the "youngest son".

The "youngest son" Kim Woo Bin entered the program and showed his "real self" and not a scripted character.

He was adept with farm work that surprised many of the cast and staff because it clashed with his normal chic, city image. He did all the dirty work, including getting rid of weeds on the farm to cleaning dishes in the kitchen.

Kim Woo Bin's day began as he got onboard the train headed to Choon Chun, a city in Kang Won province. He was excited about the train ride and expressed his nervousness before meeting the other members (Kim Gu Ra, Kim Min Jong, Seo Jang Hoon, Kim Jae Won, Honey Lee) of "Four Sons and One Daughter".

When he first met the members of the show, he was a bit embarrassed and timid. However, he quickly began to work. Using his know-how from "The Heirs", Kim Woo Bin washed all the dishes and the big metal pot. He then went out to the front yard and removed the weed in the farming area of the land.

Kim Woo Bin went around each area if they needed his help. When he didn't know how to do something, he simply asked them to teach him, and then did the work anyway. Kim Gura exclaimed, "I expected him to be a prima donna, but he's actually a warm-hearted person."

Kim Woo Bin's charms can be discovered on the March 28th episode of MBC's "Four Sons One Daughter".