Choi Tae-joon discovered out about his grandfather.
Seong Ji-heon (Choi Tae-joon) found out from Ok-nyeo (Jin Se-yeon) that his grandfather was once Park Tae-soo (Jeon Kwang-ryeol).
Ok-nyeo told Seong Ji-heon about Park Tae-soo yet he yelled at her for pronouncing he turned into the grandson of somebody who plotted a conspiracy. Ok-nyeo attempted to give him Park Tae-soo's property but Seong Ji-heon did notneed them. he said, "I would in all probability not forgive you once you tell this to anybody else".
Later, he visited Yoon Won-hyeong (Jeong Joon-ho) and asked about Park Tae-soo. Yoon Won-yeong explained his competition alongside Park Tae-so and acknowledged he ended Park Tae-soo for being a traitor. Seong Ji-heon suffered from this new fact and conceptdemanding more or less his fate.
In the end, Seong Ji-heon went to look Ok-nyeo for Park Tae-soo's belongings. After reading Park Tae-soo's letter, how will he react to Yoon Won-hyeong who killed his grandfather? Will he cling hands with Ok-nyeo who is the solelast student of Park Tae-soo?