In "Last" Yoon Kye Sang's loyalty was proven.
On the episode of JTBC drama "Last" broadcast on August 29th, Jang Tae Ho (played by Yoon Kye Sang) and Kang Se Hoon (played by Lee Yong Woo) and their meeting was revealed.
On this dya, Yoon Jung Min (played by Koo Jae Yi) wanted to give a gift to Kang Se Hoon. With that, he invited his adopted father. Learning about this, Jang Tae Ho called Kong Young Chil (played by Ahn Se Ha) and asked to look into his adopted father's name.
The reason that Jang Tae Ho revelaed this fact was to convince Kwak Heung Sam (played by Lee Beom Soo). Jang Tae So started by saying, "That man, I brought him and left him in your front yard, sir. He's at the Se Hyung Hotel in Rm. 502."
Kwak Heung Sam said, 'Are you trying to make me a hostage in the meantime?" Jang Tae Ho said, "That's not when you have bullets left" and shot a gun through the window.
At that moment, there was the praying mantis (played by Kim Hyun Kyu) who had been ordered to check the truth by Kwak Heung Sam. At the place where the praying mantis ran to, the adopted father was there like Jang Tae Ho had said.