He died in his past life because of an imperial concubine, and was born again in the high school era. It coincides with the recovery of the aura and great changes in the world. When rejuvenating as a teenager, he will follow the path of his journey, and he will protect his own friends and loved ones.
Unless you intend to read this manga in it's native language don't bother... the translation is laughably bad and is either machine translated or is translated by someone with a very limited English vocabulary. List of funny quotes from this manga. "waste!! to much talking"... ( this is by far the most retarded line in the translation, the main character is trying to say "it's a waste of time talking with you" but this is what they went with...) "you know, what are you talking to" (the character saying this is grabbing the main character shirt collar and is suppose to say "do you know who you're talking to?" but this mangled mess of retardation in written instead.) "in our class actually has such a strong classmate."... "you are poor and have nothing to be proud of dare to write a love letter to me?" (yes it's that bad...) "i advise you to look yourself first"... (are you fucking kidding me!!! he wants her to take a look at herself first...) "am i not mistaken? dare to talk like that to Pan Lingling" "he dare to say i was stinky fox!" "Xu Han, you dare call my girlfriend stinky fox. it won't be finished today." "did my eyes see wrong? Xu Han, strong. very strong!" (What is this guy a half man half chimp? this is literally what people sound like when they're trying to act like a chimp, me good, you bad, me hungry...) These type of translation botch jobs are good for one thing, a laugh.