Overall interesting premise but average execution
Spoilers
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I really don't like the coincidences especially surrounding female characters as these imply harem
Coincidences:
MC’s parents adopt two unrelated children, one of them has a system and a unique background (MC) and the other has a unique physique
MC’s teacher turned out to be a super genius who has a strong background and also suffers from a rare disease
One of the classmates who had a crush on MC (she usually gives water to MC) gets kidnapped by an evil organization
This is probably one of the worst novels ever. Annoying harem, Brainless villains and the MC is more villainous than the villains but portrayed as a good person despite killing and looting everyone. Most villains he killed didn't even kill 1% as much as MC.
The novel started as a gene evolution novel but just after a few chapters, it became a cultivation novel. Rebirth has become mostly meaningless after leaving Earth (around 130). And there is the cliche plot of MC's love interest turned out to be from a super clan, gets taken away and the MC does everything to chase