On April 29 episode of the show, the cast members of the program―Lee Sang Yun, Lee Seung Gi, Yang Se-hyung, and Yook Sungjae, spent their time with the week's special guest actor Cha Inpyo.
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177301_1280.jpg)
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177300_1280.jpg)
The cast members turned into staffs of the series for the day and stayed at the place.
When 'Ongals' joined the rehearsal, the members of the program could not hide their surprises toward the frenetic performance of the group.
The cast members of 'Master in the House' soon had time to mimic 'Ongals', and the most bizarre event took in place.
Lee Sang Yun and Lee Seung Gi wore the hilarious makeup of 'Ongals'.
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177296_1280.jpg)
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177298_1280.jpg)
Although Lee Sang Yun continuously rejected to follow the foolish dance moves, he eventually performed the dance moves in front of the crowds.
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177299_1280.jpg)
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177297_1280.jpg)
![Master in the House](http://img.sbs.co.kr/newimg/news/20180430/201177295_1280.jpg)
(Credit= SBS Master in the House)
(SBS Star)