An explosion ends the life of a young university student, but fate had other plans for the young man as he's brought to life once again but NOT in his world. Follow the adventures of the Demon King as he struggles to the road of heroes.
They run and run and run, in order to get away from their family's clutches. until they can't run anymore and one of them ends up dead and the other in another world. How will Killua react to this new world and most importantly to his sister's sacrifice in order to save his life?