
Quick answer — Hyeon-Gun worked on Solo Leveling Season 2 -Arise from the Shadow- (Original Story), Solo Leveling (Original Story), Solo Leveling -ReAwakening- (Original Story).
Hyeon-Gun worked on Solo Leveling Season 2 -Arise from the Shadow- (Original Story), Solo Leveling (Original Story), Solo Leveling -ReAwakening- (Original Story).