yeah it really seems like it's something to do with the whole group. but that would be veeeery confusing imo.
they revealed 1/3 before ViVi had her solo and it would be fine if they did it with the Eden girls and the 12th girl but they're debuting the OT12 before the unit and even the 12th girl solo? omg, it's so confusing!
and the fact that this month ends on the 28th.