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One insider said, "Seohyun is planning on promoting under a one-man agency with the help of a CEO of an advertisement agency, whom she knew since her Girls' Generation promotion days. Seohyun's trust in this CEO is very deep, as he has worked with not only Girls' Generation, but various top stars as the head of an ad agency." 

Back when Suzy's initial contract with JYP Entertainment came to an end, entertainment industry insiders also claimed the artist would be creating a one-man agency, which proved to be false. 

Stay tuned for updates.