Kill 'Em With Kindness

Fifteen years ago, the Others terraformed the Earth and turned it into a fantasy world with game-like rules. They expected to watch humanity fall apart, but the strangest thing happened…
We won.
And Jack was a big reason why. He was a mighty Berserker, and with the help of his legendary axe, Soul Drinker, he and his fellow adventurers killed the dragons, cleared the caves and forests of monsters, and ultimately allowed humanity to live in peace once again.
But does the world need warriors in a peaceful world? Jack didn’t think so, that’s why he sold all his loot and possessions for a chance to reset his class and become a healer, something the world will always need.
The world’s greatest warrior gave up his near godlike combat power and became a level 1 healer. But in this new world, a lowbie healer might turn out to be worth more than all the Berserkers put together.