In "Bluebird House" Lee Joon Hyuk had found out about the evil deeds of Chun Ho Jin.
On the 37th episode of KBS2 weekend drama "Bluebird House" (script Park Pil Joo, director Ji Byung Hyun) broadcast on June 27th, Kim Ji Wan (played by Lee Joon Hyuk) was suspicious of Jang Tae Soo (played by Chun Ho Jin) after connecting all the dots with Jang Tae Soo.
On this day, Kim Ji Wan created a trap so that he could figure out the person that fabricated the secret accounting records of Tae Hoo Industries. Kim Ji Wan had been suspicious of Jang Tae Soo as the person that Shin Young Hwan (played by Nam Gyung Eup) had pointed to as the culprit of stealing Ji Wan's family fortune..
At the end of the day, Jang Tae Soo fell into that trap. Kim Ji Wan then said, "Why did the CEO come here? You're really just proving who was the person that had touched the accounting records of the company.
Then again, Jang Tae Soo got incredibly upset. He said, "Was I only this much to you? Really?" Shin Young Hwan then threatened him saying that he would find real evidence which would incriminate him.