In "Heard it through the Grapevine" Lee Joon made a warning to Yoo Joon Sang and Yoo Ho Jung.

On the 26th episode of SBS Monday/Tuesday drama "Heard it through the Grapevine" broadcast on May 19th, Han In Sang (played by Lee Joon) got extremely angry at Han Jung Ho (played by Yoo Joon Sang) and Choi Yeon Hee (played by Yoo Ho Jung).

On this day, Han IN Sang was angered to hear that Han Jung Ho went to the home of Suh Bom (played by Ko Ah Sung). Han In Sang said, "Why did you not abide by the promise" and bickered. Han Jung Ho showed a very brazen attitude and said, "Did they talk about the expected amount?"

Han In Sang said, "Suh Bom is not going to accept a single penny." Choi Yeon Hee said, "What are you going to do. You too. How are you going to believe that?" as he got angered. In addition, Han Jung Ho said, "She's probably just wanting to avoid litigation. Litigation is really not favorable" and was dismissive of his words.

In the end, Han In Sang said, "I know Suh Bom better so don't go on with anything without consulting with me. You have to believe us when you say that we're taking things on our own."