5 member groups are in trend these days.
Since baemon already has chiquita as the superior version of lisa, no need for another thai member pharita.
And rora seems like the next best candidate to kick out cuz ruka, asa, rami, chiquita and ahyeon are just way superior.
These 5 members are already a complete package, any more members will be make the group look more crowded.
Its the only way to save babymonster. Sacrifice needs to be made.