After Shen Qingci, a sickly college student, traveled through the books, he was supposed to be Long Aotian's whetstone, but due to system failures, he time and again traveled back to his most desperate teenage years. He disappeared after gentle redemption time and time again, forcefully forcing the future leader of the righteous path to become the world-destroying demon. When the world is on the verge of collapse, the system finally releases the ultimate mission: kill the Black Demon Lord and repair the world line. But when the Demon Lord put the sharp blade against his heart, he asked him with red eyes: "This time, are you here to kill me, or are you here to love me?" A new work is released. Welcome everyone to read my work at Tomato Novel. I hope you like it. Your attention is the motivation for my writing. I will try my best to tell every story!