I, the Dark Prison Demon Dragon, Became a God Through Martial Arts.

Humans once thought that level nine was the end of martial arts. Until the cracks appeared and the tenth-level demons crushed all human pride. Later, some people awakened their innate attributes. They broke the upper limit of level nine, suppressed the demons, and rebuilt the glory of the human race. And these people are called - spiritual warriors. Iros, a dark prison dragon, came to the human world through a crack, swallowed the spiritual fruit, and transformed into a human form, starting his journey to martial arts and becoming a god.