Leon, a 25 years old dies, leaving behind a life with full of regret and unfulfilled ambition.

Follow his journey on another world filled with skills, classes and various fantasies. However unlike the usual fantasy world, this one is unpredictable and full of danger.Reborn as a Demon? So what?

He will face all those against him and kill his way to the top of the food chain.

The baseless ambition that crawls his soul in another world.

Will it be impending doom for that world?

Or will it be their their luck?

Let's find out…