It all started online when some netizens pointed out Soyu's 'attitude' problem. On MBC's 'Arirang Grand Festival' which aired this past October 5, Soyu didn't look to be in her best condition, which had worried fans. Watching the group's performance of "Loving You," one can clearly see that Soyu isn't as energetic as the other members and that her expression looks pained. Some netizens had criticized, "She has no manners," blaming the singer's 'attitude.'

However, fans protested at the agency once discovering that Soyu was suffering from an injury and that she was forced to attend all schedules despite her less-than-ideal condition. SISTAR fans were quick to indicate that the agency was not being considerate enough towards Soyu. 

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SISTAR fans are sending messages of support to Soyu, saying, "I hope Soyu feels better soon after receiving treatment," wishing for the singer to return with smiles the next time she steps on stage.