Manga by author Youn In-Wan - Status ongoing

From etc:Based on historical setting of Korea during the Josun Age. Long ago, in Jushin, secret royal inspectors named "Angyo Onshi" wandered the country and restored the order. But now that Jushin is destroyed, only one is still wandering...

Read Manhwa Jungle JuiceJang Suchan is an extraordinary college student at the top of the social food chain. But underneath the perfect faade, he hides a pair of insect wings that suddenly grew when he used a mysterious bug spray called "Jungle Juice." Suchan's life crumbles when he bares his wings to the world to save someone's life. When all hope seems lost, Suchan stumbles upon a hidden world of insect humans where everyone is accepted for what they are.But the law of the jungle governs this secret society and all must fend for themselves in order to survive.