Irene revealed the secret to Red Velvet's great team work!

On the March 3 broadcast of 'Unnies' Slam Dunk 2', Super Junior's Leeteuk and Red Velvet joined as the special guests to share useful tips to the members.

During the talk, Leeteuk asked Red Velvet how they deal with arguments. In response, Irene answered, "We did what's called '5-minute Talk'. It's good because we take the time to tell one another about the things that we're thankful and sorry for, as well as disappointed in."