Resurrection of Spiritual Energy: I Have an Upgrade System for Killing Monsters

"If I kill this innate ferocious beast, I can upgrade to Grandmaster!" Lin Yu carries the monster-killing upgrade system and enters a world where spiritual energy is revived. It is discovered that humans here need to resist the invasion of vicious beasts within the city walls. In order to live comfortably, he must use his golden fingers to kill ferocious beasts and quickly upgrade and become stronger. Then! The nightmare of ferocious beasts came, Lin Yu kept killing, killing countless ferocious beasts, and upgraded to the strongest on the planet. That is! No matter beast or human, call him! "God of Killing" … When Lin Yu arrived at the strongest planet, he discovered that there were countless enemies outside the planet, waiting for him to kill and help him level up. On the way to kill, there will be cute lolita, innocent girls, plump ladies, considerate big sisters, etc. All kinds of confidantes accompany Lin Yu. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.