This is a world infiltrated by demons.
Demons hide among humans and devour them.
Human martial artists slay demons, then take their demon crystals, blood, and flesh for themselves.
Xu Lai is a transmigrator from Earth, with nothing going for him.
He has no connections. Though his soul transmigrated, it ended up in the body of a small child.
With no parents, he lives in an orphanage, but cannot fit in with the other orphans.
He has no System, not even the System that every transmigrator is supposed to get.
He feels no different from an ordinary child.
And he has no opportunities, not even the chance to become a martial artist.
That is, until a demon storms into the orphanage and goes on a killing spree, murdering the only person in this world he considers family.
Badly wounded, Xu Lai's clothes are stained red with blood, which seeps into the jade pendant he has worn on his chest since childhood.
Only then does he understand that, in this world, he needs to be strong on his own.