Since the rumor about Park Minji from Produce 101 and Produce 48 could be joining Secret Number, fans of Secret Number have also found the identity of another candidate that might join the group to complete the lineup of six.

Ahn Seohyun is rumored to be the latest addition to Secret Number. She was a contestant on Burn Up 30, a survival show created by JTBC and DSP Media, and a member of the disbanded pre-debut girl group White Witch under MY Entertainment, home to artists such as Sunny Hill and S.E.S Bada (former).

The rumors mentioned that Ahn Seohyun has deactivated her Instagram account (used to be @sh_atlhea) right before the release of the comeback schedule. It is also said that Ahn Seohyun's unrevealed acquaintances are following Secret Number's Instagram account around the same time. However, her YouTube channel is still available, with the last update in February 2021.

The singer is also notable for being the vocalist behind "No Filter," a song from Pulse9's virtual AI girl group Eternity's Dain.

Are you excited for her debut in Secret Number?