Chen Fan, a great cultivator during the tribulation period, fell into the calamity, but dreamed of returning to the earth for five hundred years as a young man. Chen Fan, who returned to the earth era, decided to re-study in a down-to-earth way, to solidify his foundation, and at the same time make up for his previous regrets, help his past life to heal his stubborn illness, and help his classmates overcome difficulties and succeed in the examination, and finally find his partner to grow up with. story.