The First Room Invitation probably originated at the moment when the first Limiters were introduced to fight alongside the already-present Pandoras. Due to the new partnership option it must have evolved as a natural function of the necessarily intimate human relationships between the Pandoras and their Limiters.
- According to Satellizer L. Bridget the ceremony can also be described as a shameful or a lewd act.
- Due to the grand controversy of Pandora wearing revealing clothes at the time to preform the Baptism, many people believe it to be a sexual act, this so they could explain the sexual attractive clothes. However since an actual Baptism ceremony has yet to be witnessed, this can only be brushed off as speculation.