The PD of '4minute's Travel Maker', Im Woosik, revealed that there is no bullying within the group through a telephone interview with Daily Sports. "This is not a group that only looks close on camera. They are just like best friends behind the scenes as well. Kwon Sohyun, the maknae, calls her unnies by their name. All the members call each other by their names and don't feel the need to use honorifics. No one in 4minute gets ostracized. There is absolutely no bullying in this group.”

A representative of Cube Entertainment also revealed 4minute's close bond. "The members of 4minute often speak with each other and share stories, even when they are not filming. The members are so close to each other that they will find each other instead of idols from other groups whenever they have free time." 4minute's strong teamwork can be testified by those who work with them behind the scenes.
Sources: 4MF | Daily Sports | 4niatw