I gain permanent defense when attacked; even gods and demons can't hurt me.

Global upheavals have occurred, the abyss has descended, dungeons abound, and Earth has entered an era of universal job advancement. Only by becoming a job advancement user, leveling up, and growing stronger can one survive in this dangerous world! On the day of his job advancement, Lin Yuan awakened a unique hidden class, the Undying Barrier. Originally thinking he could only become cannon fodder, he gained the god-level talent [Eternal Destruction]. Every time he takes an attack, his defense permanently increases by 1, and enemies take true damage equal to 1% of Lin Yuan's maximum health! Not only that, Lin Yuan can also unlock a gold attribute every five levels. [Experience Armor]: Every time he takes an attack, his experience points increase by 1. [Endless Barrier]: All skills have no cooldown. ...From then on, Lin Yuan embarked on a path of becoming stronger by taking hits. "Your attack power is 900 million? Sorry, I can't break your defense." "Your skill is a forbidden spell? Oh, it's quite a tickle." Facing the Demon God's ultimate attack, Lin Yuan yawned: "Can you hurry up? My defense is almost maxed out." Who says defensive classes can only become cannon fodder on the battlefield, dying on the front lines? The harder you fight Lin Yuan, the faster you'll die! What was once considered a useless profession has become the enemy's nightmare and the guardian of humanity!