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It seems like Seohyun is trying to pass on her good habits to the members in her group, as she suggested to Hyoyeon that she start reading and that Sooyoung wake up early in the mornings. 

The maknae explained her reasons behind her suggestions, elaborating, "Hyoyeon found reading so difficult. She told me that books don't suit her image and said she couldn't read anymore because she was embarrassed." 

For Sooyoung, Seohyun tried to instill the habit of waking up earlier by recommending, "I got into the habit of waking up early during middle school to study, and I found that I could do the same for [Girls' Generation] schedules."  

Do you think Sooyoung and Hyoyeon will be able to emulate Seohyun's diligent habits? 

Speaking of good, check out her beautiful rendition of "Let It Go" above!