Achieving Immortality Through Simplified Lifespan Techniques

In this world of immortals, demons rising, and talent more important than effort, the transmigrator Qin Shu awakened the Lifespan Simplification System.
Whatever it might be, it could be simplified using one's lifespan.
[Ding, Meteor Sword Technique has been simplified.]
[Meteor Sword Technique → Swing sword.]
[Ding, Demonic God Technique has been simplified.]
[Demonic God Technique → Slay small demons.]
"This system is great, but it's a bit life-consuming."
Qin Shu, the Eternal God Emperor and the Saint Ancestor of the Demon Path, said so.