Cultivating Immortality in a Weird Way: the System Forces Me to Do Evil

[System activation! Host, please choose: Kneel to become stronger or stand to die? Yu Feng traveled through time and became the most useless abandoned son of a family, but he was bound to a double-edged upgrade system - completing "Slaughter All Enemies" can gain Nascent Soul cultivation, and choosing "Sparing the Infant" will cause all the meridians to be severed. When the evil plot met the law of heaven, he held the god-killing gun rewarded by the system in his left hand and pierced the enemy's Dantian, while his right hand stuffed the life-saving elixir into the mouth of the dying demon saint. The pursuit of the Three Realms and the pilgrimage plan of all races are launched in the cave at the same time. The realm of cultivation is like sitting on a rocket but the Taoist heart is dusty. See how the male protagonist of Black Lotus exploits the loopholes in the way of heaven in the field of good and evil Shura, turns the system taskbar into a slap-in-the-face progress bar, and proves the most domineering Mahayana path to immortality in the most unorthodox manner!