Ryua, the protagonist, is abandoned by his companions for lacking skills. To compete with skilled individuals, he has no choice but to level up. After five years of intense training in the forest, he reaches level 8 million. His excessively high level makes him superior to not only skilled humans but also demons and gods. This is a story of an unassuming protagonist's unparalleled strength and acts of kindness, despite his insecurity about lacking skills.