After garnering first place in the 2002 Korea-Japan Ultra Idol Duo, Sooyoung was sent to Japan and debuted as a member of the duo Route 0, alongside Marina Takahashi.
After garnering first place in the 2002 Korea-Japan Ultra Idol Duo, Sooyoung was sent to Japan and debuted as a member of the duo Route 0, alongside Marina Takahashi.