QODES

On January 21, 2021, several news sites reported that a newly-formed agency named EJ Music would be debuting their first girl group, QODES, on February 1, 2021. Their concept gained attention for being the first of its kind, and would be based on 'seasons' (such as in TV drama productions). The four-members were introduced as Delta, Nu, Lambda and Alpha.

In addition, their concept would be PRG video game themed where the creator (company) is the NPC, the members are the in-game characters and fans are the users/players. On May 4, 2022, Delta (Yukyung) shared through an Instagram DM that they weren’t able to make an official announcement, but the group has disbanded.