Yi Lin hadn't wasted the past thirteen years.
All his skills were initially unlocked, evolving from "skills" to "enhancements."
This was a path that every Spirit-medium must traverse.
In the early rapid evolution of the Angels, through the trials at Paradise, they obtain skills. But these skills are a force from outside, only by truly understanding the operation mode of the skills and undertaking "secondary editing" can they genuinely become the power of the Angels themselves.
Unlocking the skills was something Yi Lin had started experimenting with much earlier.
When he was still a newbie, Yi Lin developed the derivative use of "Trace of Shadow" from "As Shadows Follow," which was actually the embryonic form of skill unlocking.
However, at that time, his understanding of "As Shadows Follow" was not profound enough, unable to reach the level of "unlocking."
The direction for unlocking "Bloodthirsty Disaster" was very simple.
