Prince is the son of the president of Lurker Cash. A wealthy and arrogant young man, he initially relies on hired minions to complete his tasks. Despite this overconfidence, he possesses significant Shinsu control, achieving the highest score among his associates during a physical strengthening test on the 20th Floor. He first appears during a Survival Round Test, arriving with associates Kim Lurker and Rapdevil. His father had bribed test proctors and hired mercenaries to ensure his success. After scoring first in an initial test, he is shocked when another Regular, Viole, achieves a vastly higher score. During The Trustworthy Room test, Prince immediately targets Viole but is easily defeated. He swears vengeance after mistakenly believing Rapdevil was killed, only to be betrayed by Kim Lurker. Rescued by Kang Horyang, he develops a deep respect for him and thereafter refers to him as "Devil-nim." A turning point comes when he learns the full extent of his father's sacrifices, including spending the company's entire fortune and ruining lives to rig the tests. This leaves him speechless and inspires a resolve to work harder and become more modest. He then forms a team with the group that passed the exam on the 20th Floor. As a member of Team Tangsooyook, he participates in tests on the 21st Floor. During a mission to find Zygaena's flower inside a large creature, his group encounters powerful parasites and a mysterious red-eyed man. Prince uses three Lighthouses to slow down the enemies while Horyang fights. The group is forced to flee from this powerful individual, later revealed to be Urek Mazino, and Prince's Lighthouses are destroyed in the encounter. He continues climbing with the team, assisting in battles on the 28th Floor by using Lighthouses to bind enemies' movements. When Horyang goes missing, he joins the rescue effort and discovers Khun Aguero Agnis in the rubble of a destroyed structure. The team nurses Khun back to health and agrees to work together to rescue Viole and Horyang. Prince follows Khun's training regime and directions, helping the team pass the test on the 29th Floor. Upon reaching the 30th Floor, he is shown to be afraid of heights. When a game begins, he and Miseng are taken captive by Verdi of Ship Leesoo's team, who offers to turn them into dolls. Prince rejects this offer despite the temptation of becoming stronger. He is a D-Rank Regular who occupies the Light Bearer position, with a primary ability involving the use of Lighthouses for support and reconnaissance.