Sungmin's wife with the Instagram ID 4silver_32 liked a photo of an international ELF slapping a Korean ELF in the face.
She also liked various posts supporting Sungmin's stay in the group Super Junior.
In reaction to Kim Sa Eun's Instagram activities, netizens expressed anger, and commented, "Wow.. she's targeting fans. I'm getting goosebumps", "Hul, what is up with her?", "She must really be out of her mind..", "Ah I'm getting so mad", "Wow that is too much", "She must think the fans are losers", and more.
Kim Sa Eun has since turned her Instagram account private following her recent online activities.
Meanwhile, Korean netizens have heavily opposed Sungmin joining Super Junior's comeback later this year. Super Junior fan site has also demanded Sungmin to be removed from the group.