Reincarnated into a child - male protagonists

After getting hit by a truck and dying, he reincarnates as a baby. As the last survivor of an attack he gets taken away to a sect to be raised into a martial artist.
-looks like they’re might me harem
-reincarnates as baby
-genius since born
-isn’t child forever

Main character dies in dungeon and goes back to the past. He uses this opportunity to save his family from death and prevent a future catastrophe.

-mana
-hunters
-rewinding time
-side characters are basically children

A middle schooler gets transferred into another world. He ends up dying then gets sent back to where he first came there.

Just imagine those transferred into another world stories but make that world like really dangerous and full of murderers and that’s it

This is COMPLETED.

Mc goes back to the past. He becomes a talented mage in order to make sure his mom lives a good life.

-short (quick read for me but ig a decent length)
-romance
-he grows up eventually but he’s mainly a young prodigy mage

Reincarnated into a baby but grows up

Why does his father legit have a army of children

He’s really OP but I smell a harem brewing ngl