Sign in at the Beginning to Kill the Immortal Sword

Li Changsheng traveled to a foreign world full of strong men. There were Li Taibai, the wine and swordsman of the Tang Dynasty, Muzhen Khan, the genius of the Mengyuan Dynasty, and the iron-blooded handsome emperor Ying of the Qin Dynasty... Li Changsheng became disabled due to a problem in his cultivation, but at this time the system was activated! Sign in at the Taiqing Hall and get the 'Zhu Xian Divine Sword'! Sign in at Yuqing Hall and get the 'Mending Sky Pill'! Sign in at the Shangqing Hall and obtain the 'Great Sun Magic'! Li Changsheng worked as a patrol boy in Shushan, wandering around and never missing a place where he could sign in. In this way, after three years of signing in, he was finally invincible! But at this moment, the demon god caused a catastrophe, slaughtered all living beings, and led a hundred thousand demon soldiers to attack Shushan. They fought all the way to the Taiqing Palace. Their ferocious power was unmatched until they met Li Changsheng who was patrolling the mountain...