On the 30th, YoonA posted a picture along with the words "YoonYul" on her Instagram.

In the photo, YoonA and Yuri are taking a friendly mirror selfie in what appears to be Girls' Generation's practice room. The two revealed the recent situation they were preparing for a comeback in T-shirts and training clothes, raising expectations for the first Girls' Generation stage in 5 years.

Netizens showed enthusiastic responses such as "Girls' Generation's as a full group is coming soon", "Precious YoonYul", "My favorite combination", and "They are a visual member". Yuri also left a comment on this post saying "YOONYUL 4EVA", revealing her warmth.

Girls' Generation will make a comeback in August to commemorate the 15th anniversary of their debut. YoonA will appear in MBC's new drama 'Big Mouse', which will be aired this month.