Rean, Roan, Kentucky, and Celis returned to the Dimensional Realm after agreeing to meet their groups later. After all, it was much better to spend one's time cultivating in the Dimensional Realm than outside. Not to mention that they couldn't bring their Rank Three Divine Stones out.
Because the twins' group was focused on the test, the elders of the System Sect received an order from Sister Orb to not bother them unless extremely necessary. Sister Orb could be said to be the second in command when it came to things in the Dimensional Realm.
