2017–2023: Pre-debut activities Some members have previously been involved in the entertainment industry prior to joining the group. Zoe participated in the
JTBC's survival reality series
Mix Nine. She was eliminated in episode 10 after ranking 39th place. Yeyoung and Sion were contestants on the reality survival show
Girls Planet 999, Sion was eliminated in episode 5, ranking K28, while Yeyoung was eliminated in episode 8, ranking K17, unable to debut into the
final debut lineup. On December 20, 2023, in a news release, it was revealed the agency Sure Place would be debuting a new girl group, named Geenius, and opened their own SNS accounts. Through the SNS accounts, a coming soon teaser indicated that they are ready to debut soon. The next day, they began revealing their members as leader Yeyoung, Sion, Mika, Zoe and maknae Andamiro. Along with the members, they revealed their debut date as January 5, 2024 with the digital single "Voyage". While in the first week of their pre-debut stage, it was reported that the group was previously known as Bebez at
Blockberry Creative, but all members left the agency after their exclusive contracts expired and thus signed new contracts with Sure Place. However, just a few days prior to their 2024 debut, recent news reports revealed that their actual agency is HOMe, a sub-label under Sure Place created by ex-Blockberry creative directors.
2024–present: Debut with Voyage On December 20, 2023, it was announced that they would make their debut on January 5, 2024 with the digital single "Voyage". ==Members==