The curiosity for the identity of the spirit inside of Gong Yoo is getting larger.

On 18th, the 5th episode of KBS 2TV 'Big' showed Kang Kyungjoon(Gong Yoo) leaving to the US and meeting up with Daran(Lee Minjung) after a year.

Daran saw Kyungjoon at her friend's wedding, and she called him, "Kyungjoon!"

However, Kyungjoon didn't show any response, and as she called him once again, "Yoonjae!", she looked back at Lee Minjung, arousing curiosity among the viewers about what happened to him in one year.

Thus, it seems that the drama will get more interesting and suspenseful as the romance officially starts and as Seo Yoonjae's secrets start to get revealed.

Viewers made comments, such as "So surprised by such an unexpected plot development", "I can't wait for tomorrow's episode", "I had goose bumps on my arms", and "Who the hack is that guy?"