On last week's broadcast of MBC Every1's "EXO's Showtime," Chaneyeol's mental state in the preview is a hot topic right now.

Unlike his usual positive state, Chanyeol showed off a blank type of mental state. Net users have commented, asking questions such as, "Why is he angry?" and "Why is he crying?" and eager to find out what is going on with the idol star.

The reason for such a mental state is expected to be revealed in the December 12th broadcast of "EXO's Showtime" episode 3. EXO members carried out a special mission at Shinsadong that was kept a secret to only Chanyeol.

The members were busy preparing for Chanyeol's surprise birthday party, and chose birthday gifts they thought he would enjoy. However, they fooled Chanyeol into thinking that they were buying gifts for each other for the holiday season.

After their shooting, Chanyeol was called into an empty room by the staff, who claimed he had to do an interview. Rumor has it that the room was filled with presents and Happy Birthday phrases, and that Chanyeol was moved by the members' dedication.

However, upon finding out the truth of a surprise party, Chanyeol responded by saying, "I can't do this anymore. Isn't this too cruel?" and showed disappointment, much unlike his usual bright self. At this the members said, "I didn't know Chanyeol would act this way," and were disappointed at his reaction.

What happened between Chanyeol and the other EXO members? If you want to find out the chaos that led up to the surprise birthday party for Chanyeol, you can tune into the "EXO's Showtime," which is scheduled to air on MBC Every1 today.