Il-Hwan Seong (성일환) is a supporting character in Solo Leveling Season 2 -Arise from the Shadow-, voiced in Japanese by Rikiya Koyama. The series' music includes "LiSA『ReawakeR 』MUSiC CLiP", "Solo Leveling Season 2 -Arise from the Shadow- Ending | "Un-Apex" by TK from Ling Tosite Sigure".