Jessi appeared on the May 2 airing of MBC Everyone's 'Our Oppa Show,' where she was asked about how she maintained her fit and tight body.

She said, "I did not exercise at all the last two and a half years.  I don't think I'm able to gain because I'm always so active and animated," revealing she was just born with it.  Kim Woo Ri joked to her, "I think once the broadcast goes out, you will rank first in being despicable," causing laughter.

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She then revealed that she used to maintain her body through boxing in the past.