For the Ghost Soul Bubbles, it wasn't unusual for a few humans to enter the Mande Cave now and then.
This planet has no shortage of people who are both brave and meticulous, and capable.
Some strong individuals disdain using others' power to enhance their combat abilities. In their view, one must have absolute control over one's own body.
Others believe that their faith can dominate everything, even if a Ghost Bubble enters their Sea of Divine Consciousness. They can use their strong will to completely dominate it and turn it into their power.
The Ghost Bubbles don't mind about this.
In the Mande Cave, the loss of soul source power becomes extremely slow. Although ghosts feel incredibly lonely in the endless river of time, they do not disappear.
Especially for lucky ghosts, finding a suitable host to take them away from this place, allowing their remaining soul to see the fascinating world outside, is also a good choice.
