Ye Xiaofan, a modern person, accidentally travels to a cultivation world and is taken in as a menial disciple. Using his modern mindset and knowledge, he solves a rare demonic invasion with cold granules, earning him a promotion to the master's personal disciple. Despite facing bullying from fellow disciples, Ye Xiaofan leverages modern wisdom to carve out a unique cultivation path, blending science with traditional methods. His journey is filled with humor, bravery, and a sense of duty to protect the cultivation world.