However, one of Bai Xiaowen's four companions was rather special.
That was Cecilia.
Besides being Bai Xiaowen's former teammate, she had another identity: Bai Xiaowen's Follower.
As a Follower, Cecilia could follow Bai Xiaowen into the same Evolver Plane without spending additional Spirit Crystals.
However, this method of traveling together differed greatly from forming a party before, mainly because of the "spatial displacement" effect.
Upon entering the same plane, the two would be separated due to spatial displacement. If they were unlucky, they might not meet again before the exploration ended.
Despite the concern over spatial displacement, Cecilia still chose to follow Bai Xiaowen on his first exploration of the Evolver Spirit Realm Plane.
There was no other reason: it saved money.
Sixty-six Spirit Crystals were no small sum, especially for the newly established White Phoenix Fief.
Bai Xiaowen first had his other companions leave Spirit Force Marks on the territorial monument. It was equivalent to obtaining passes; afterward, they would not need Bai Xiaowen's individual approval to return to the territory.
After the companions finished with their Spirit Force Marks, they entered the Evolver Spirit Realm Plane through the planar portal.
Bai Xiaowen then went over the territory's affairs once more and had Kitz remain behind to assist Zhen Mi in managing the skeletal laborers.
It was worth mentioning that the Black Soul Stone—now Death God's Visage—could allow the summoned creatures within it to act independently across a plane after gaining self-awareness, just like Zombie Doctor.
When necessary, Bai Xiaowen could still use Return of the Dead to summon them across planes.
Unless he ran into especially terrible luck, such as a certain Death God Naige'er who preferred to remain unnamed summoning a Black Knight Lord in Guangchengzi's Cave Abode...
Having arranged everything, Bai Xiaowen entered the planar portal