The contest stated that charming males and females would randomly intrude in front of the contestants to create interferences. The contestants must endure these interferences and maintain a low heart rate.
After discovering this portion of the contest, Crush decided to build resistance to charming interferences by watching TWICE! But while he started off nicely, he couldn't help but smile in the end to TWICE's "Cheer Up".
It must have been tough trying to resist TWICE, but it seems like the hard practice paid off after all!