Jin-U Seong

성진우, Sung Jin-Woo, Shun Mizushino (水篠旬), World's Weakest Hunter, 2nd Rate Asian Hunter, The Weakest Hunter of All Mankind World's Strongest Hunter, S

Birthday:: Mar 8
Age:: 23 - 24
Gender:: Male
Class:: Mage
Relative(s):: Park Kyung-Hye (Mother), Sung Jin-Ah (Sister),
Guild:: Ahjin
Affiliation:: Korean Hunters Association (helper), White Tiger Guild (helper), Hunters Guild (helper), Knights Guild (helper), Ahjin Guild (Guild Master)

Seong Jin-U is the protagonist of Solo Leveling and is known as an infamously weak E-Rank Hunter. He is a humble and benevolent individual who cares deeply for his family and has an ardent desire to become stronger. As a result, he shares a close relationship with his sister and his mother, and rarely wastes an opportunity to refine his skills and gain more power.

He becomes an S-Rank hunter after being given a chance to become stronger by the System.