Immortal Martial Arts: Training in Secret and Gaining Stats in the Tang Dynasty

In the 160th year of the Zhenguan era, Lu Yuan transmigrates to an immortal martial version of the Tang Dynasty and becomes a Collator at the Palace Library. He only wants to live quietly by proofreading books, but someone always seems to want him dead... Fortunately, he has a stat-boosting System! 【Name: Lu Yuan】 【Vitality: 88】 【Strength: 5】 【Agility: 4】 【Spirit: 8】 【Technique: The Way of Heaven Is Strong and Unceasing (Not Yet Initiated)】 【Available Skill Points: 1】 In the deceitful imperial capital of Chang'an, and across a Tang realm beset by threats from within and without, gods, ghosts, immortals, heroes, Buddhas, demons, Daoists, and sorcerers emerge without end. To protect himself, he decides to lie low in the little Palace Library, secretly investing points in cultivation, practicing techniques, extending his lifespan, and pursuing the path to immortality. Lu Yuan's original plan is to outlive Li Shimin, who is nearly two hundred years old, then outlast his young crown prince Li Ye, who is over a hundred, followed by his young grandson Li Xian, now in his fifties. While he's at it, he'll outlive Wu Zhao, An Lushan, and all the others living in this era. Perhaps then his chance to rise will finally come. Of course, it doesn't matter if he can't outlive them. Other people may cultivate for their whole lives and live no more than two or three hundred years, but he can keep cultivating forever. If a hundred years isn't enough, he'll take two hundred; if two hundred isn't enough, he'll take five hundred! A thousand years from now, he'll still be strong and vigorous, with only one new title: “Invincible Under Heaven.” After all, every single attribute point saves him at least three years of hard cultivation!