System Glitched? I’ve Become Immortal!

Because Lü Qing was born with the worst, Grade Nine talent, the Lü family abandoned him. But on the day he awakened as a professional, something appeared. The System reshaped Lü Qing's profession into the Sword Saint, the greatest class for killing. But right after that, the System froze and never appeared again. Soon, Lü Qing realized this might not be a bad thing. With his health bar frozen, he couldn't lose health, making him immortal. With his mana bar frozen, he had an unlimited supply of energy. While others saved their ultimate moves for emergencies, he could unleash them one after another without worrying about running out of mana! Fearing Lü Qing would take revenge, the Lü family began hunting him down. Yet just one year later, Lü Qing appeared once more. “This time, you'll pay for everything you've done!”