Park Eun Bin showed his one sided love for Lee Sun.

On the episode of SBS drama "Secret Door" (script Yoon Sun Joo, director Kim Hyung Jik) broadcast on October 7th, Lee Sun (played by Lee Je Hoon) started to get upset at Lady Hyegyung (played by Park Eun Bin) who had ordered her to be followed.

Suh Ji Dam (played by Kim Yoo Jung) dressed like a Ki Saeng and took the secret document from Choon Wol (played by Kim Bo RYung)'s room as she found the name of Hong Bong Han (played by Kim Myng Kook).

Lee Sun assumed that there was a faction Involved and was trying to escape the court walls. Then, she finds Kang Suh Won (played by Lee Won Jae) the guard who had been watching her all this time under the order of Lady Hyekyung. Lee Sun realized that Hye Kyung was following him and gave her an accessory In her room.

Meanwhile, SBS Monday/Tuesday drama "Secret Door" is a period drama tha follows the conflict between King Yeongjo (played by Han Suk Kyu) and Crown Prince Sado (played by Lee Je Hoon). Kim Yeong Jo has an authoritarian ruling style whereas Crown Prince Sado insists on equality for all.