Game Invasion: I Fill up the Skill Tree by Killing Enemies!

[Games, time travel, digitization, single female protagonist] Fifty years ago, giant stone gates fell from the sky, the world became digitized, technological civilization collapsed, and thermal weapons were reduced to scrap metal. Fifty years later, mankind rebuilt a new civilization based on the rules of the game on the ruins. Everyone who reaches the age of 18 undergoes the awakening ceremony, obtains talents, becomes a player, kills monsters, plays dungeons, and upgrades. This is the law of survival in this world. Talent level: D-C-B-A-S-SS-SSS Lin Yuan, a soul who traveled from the earth, awakened a **black talent** in public during the awakening ceremony - not in any hierarchy, the panel showed "???". Everyone knows that SSS-level talent crushes everything, but they don't know that the inconspicuous black talent is the endless abyss. While others gain fixed skill points for every level they level up, he gets additional skill points for every enemy he kills - the stronger the enemy, the more he gets. When someone else only has 10 skill points at level 10, he already has 500 points at the same level and all skills are maxed out. From then on, there was a crazy mage in the world, who killed all races and made all the gods tremble!