My Friend He's Floating

A strange world where at least two time travelers appear every hundred years, two teenagers who died in a car accident... The leader of the demon sect and the evil supreme leader who started a life-and-death showdown died together... Two teenagers were reborn in them... A world without any knowledge... There are only two people seriously injured in the wilderness... Witchcraft? Science and technology? Cultivation? Martial arts? What the hell? What kind of world is this? Martial arts and modernity coexist, and a world mixed with extraordinary power unfolds before their eyes... After hiding incognito for a few years, I discovered... We seem to be very strong? ?