Chen Miao opened the Notebook and laid it on the table, consulting it as he ran a few tests.
As long as no chapters about him courting death appeared in the Notebook, the tests could continue.
The tests did not take long. They proved that an ordinary Soul-Splitting Technique could not cause a "switch between primary and secondary," even if he split off more than half his soul body.
That switch was the result of the [Soul fusion] ability.
As for whether excessive [Soul fusion] would cause his soul body to collapse, Chen Miao reached a conclusion on that as well.
[Soul fusion] had its own protective mechanism!
Once Chen Miao's main soul had transferred a certain amount of soul power to his split soul, no more soul power could be sent out.
That limit might have been precisely the threshold at which his main soul would collapse.
This saved Chen Miao a great deal of trouble. At least he would not have to worry about misjudging the process and destroying himself outright during soul fusion.
Afterward, Chen Miao conducted another series of tests. For instance, he used [Status: Twin birth] to establish a twin birth connection with a ghost on Twin Ridge Mountain, then tried to perform [Soul fusion] with that ghost through the connection.
The results were just as Chen Miao had expected. A simple connection could not trigger [Soul fusion], but once he designated the other party as his "twin birth" target, soul fusion became possible.
This process also taught Chen Miao something else: once the soul power he infused exceeded the strength of the ghost's own soul body, the ghost would submit to his control.
And the more soul power he infused, the less resistance there was to that control.
Even if Chen Miao severed the