At the age of sixteen, he was shunned by his family due to his human-like features and his mother's tragic fate. Four years ago, in an unfortunate incident, he suddenly went berserk, gaining his father's attention but losing his only source of warmth, his grandmother. The passing of his grandmother unleashed his potential, revealing the legendary berserk power. Since then, becoming a powerful figure has been his sole pursuit. He has been practicing the Heavenly Thunder Armor-Stripping Technique passed down by his father, while secretly training in the Heavenly Devil Formula left to him by his grandmother. Now, his father has assigned him an important mission. How will this assignment change his destiny?