Sung Jin-Woo is the main protagonist of Solo Leveling. Originally an infamously weak E-Rank Hunter, he got the chance of a lifetime when he was selected as the Player of the System, giving him the unique ability to grow in strength without restraint. Jin-Woo is a confident individual with a strong sense of family and a thirst for power. As a result, he is very close to his mom and sister and rarely wastes an opportunity to grow stronger. Despite being strong and respected, Jin-Woo isn't arrogant and is both polite and easygoing in person. He is also mostly indifferent to materialistic desires such as fame and fortune and can be very selfless. In battle, however, he is ruthless, slaughtering his enemies indiscriminately and even somewhat disdainful.

Miyamoto Musashi (1584 – 1645) or Shinmen Takezo (his birth name) at a very young age embarked on a journey to become the strongest samurai only after being exiled from his own village. Musashi is the son of a samurai family, whose father was one of the most renowned samurai across the nation. One of the foremost reasons that drives Musashi to excel in sword-fighting is his desire to overcome his father due to the harsh treatment Musashi received during his childhood because of his incapability of rebelling. Musashi is unique in terms of his sword skill due to the unfamiliar movements and lack of style he uses. This is due to the fact that he spent most of his time in the forest labeled as a demon child by his village because of his demeaning and wicked nature. No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .