Humans embody the essence of creation while gu insects represent the crystallized fragments of the Great Dao. Spring's hopeful ambitions fade beneath autumn's relentless grip. Five centuries of accumulated glory and devastation crumble to dust before dawn breaks. The sun illuminates the mountains in brilliant gold as the demon's era draws to its inevitable close. The formidable demonic overlord Fang Yuan faces annihilation when his refinement of the Spring Autumn Cicada—a legendary gu worm capable of temporal reversal at the cost of one's very existence—becomes known to his adversaries. Cornered and desperate, Fang Yuan activates the Spring Autumn Cicada and miraculously returns to his past as a fifteen-year-old in Gu Yue Village. Armed with foreknowledge of future events, he prepares to reshape the world according to his will. Yet something unexpected has shifted. A peculiar interface materializes before him: 'The Goody Two-Shoes System,' issuing quests and dispensing rewards. "Restore Fang Zheng's confidence!" - Obtain a Green Copper Relic Gu! "Assist your companions in gu refinement!" - Increase your aptitude by 2%! These missions seem determined to transform the demonic overlord into a beacon of virtue. But something feels amiss with these objectives. Why does marrying Bai Ning Bing unlock an immortal gu? Regardless, rewards are rewards. This fanfiction builds upon Gu Zhen Re's original work 'Reverend Insanity' (蛊真人 or 'Gu Taoist Master'). Original rights belong to the author. Gu insects are mystical creatures of immense power that form the foundation of this world's cultivation system.