Until now, the human warriors of Ragnarok have been heroes who fought with great skill, cunning, and magic. But with Nikola Tesla in the arena, humanity has a hero who fights with the power of science! In life, Tesla unlocked many secrets of the universe, including the the ability to control gravity. But can even this miraculous power stand up to Beelzebub wielding a technique that is forbidden even in the depths of Helheim?