Getting a Technology System in Modern Day - Chapter 14: Payment invoice

«Grey, elemental affinity, zero» The Elder announced the result loudly.

This world has fused with another world and such fusion leads to the rise of Martial Artists.Chen Shouyi becomes the master of the ‘Book of Knowledge’. He can deduce cultivation arts, and optimize secret manuals with the help of it.But the first time he enters the space created by this Book, there's an accident.“Brother! Brother! What happened to you?”“Wake up, I promise I'll never intentionally annoy you again.”“Please wake up!”“Brother! Brother... Dad! Mom! Come quickly, my brother has fainted.”

Enter a world of superhuman abilities and mysterious organizations as you follow the story of Jiang Bei, the enigmatic founder of the Infinite Alliance.With the power to extinguish stars and melt anything in his path, he is hailed as a god among men and the torch of the Dark Era.But what secrets lie behind his incredible powers, and what will he do to protect his legacy and extend his life?

What would you say is the most valuable thing in this world?