She was one of the performers on 'Yoo Hee Yeol's Sketchbook', and Yoo Hee Yeol asked, "Usually, when groups break up, they say it's an indefinite hiatus. But Jewelry just blatantly said you were breaking up."

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Seo In Young replied, "We took our last photoshoot together. Afterward, we went to have dinner. Park Jung Ah and I used the word 'graduate', and then after that, there was a Jewelry where cuties took part in. But after that, after the contracts were ended and realistic problems came up, a time where we thought about what we'd do when we got older came up. Both Eunjung and Jooyeon talked a lot about what to do. They'd ask, what should I do? And I thought they should go in the direction they wanted and do things they wanted, since this is a hard place. So I think I told them a lot of things like that. When I see girl groups, I can kind of see what they must be thinking about, and what must be hard for them. Even if their life is flashy right now."