In the Ancient Primal World (Magic Punk) Survive or Die

A teenager dies not knowing how.
He was reborn as a baby.
But before he can live his life, a tragedy comes, and destroys his kingdom.
He was sent to another place by his parents for safekeeping, but due to space turmoil he was thrown to an unknown world.
Let's follow the boy's life as he fights unknown dangers which are at every step of the world he was thrown in, like,
Mythical creatures, Yakshas, Demons, Devils, Titans, Giants, Beasts, Aliens, Monsters, Vampires, etc.
We will see how he will help peoples in need, and kill peoples to save others.
Even if he is labeled as villain by those saved peoples.