Qin Yu was killed a few hundred years into the future during the apocalypse due to a misjudgment. He then traveled back in time before the apocalypse kick off, relying on his battle hardened apocalypse experience and techniques, Qin Yu rapidly developed into a formidable opponent, passing through hurdles, saving the world all while protecting his beloved sister.
Not only is it a ripoff of The Last Human it is a bad ripoff. The MC is too edgy, everything is happening too fast and the characters are unidimensional. It's like the author imagined themselves in that world and gave themselves super op abilities and a weird siscon relationship. Villains are well it's a manhua so you know how they are, canon fodder to make the mc shine.
I was excited to see the over 100 chapters, but disappointed to realize the pacing is terrible and the chapters are painfull short. Reading 80 of them feels like reading about 20 normal chapters, maybe. Considering many 'chapters' are about 20 speech bubbles total, many speech bubbles having one word in them... it is very light reading. The story isn't bad, and the art is decent, but the mood seems to switch between stupid slapstick comedy and seriousness randomly. Again, the pacing is terrible. I wouldn't recommend it as good, but it's readable, which is more than I can say for many manhuas.