Inja gang is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is
“Too great a talent wields the life of its owner.” Woo-hyuk, who has a powerful body, lives with his tendency for committing acts of violence suppressed. Until one day, when he wanders into the Peach Club by accident, and gets his talent noticed by Yu-bin, the club’s manager. She proposes Woo-hyuk follow her, and Woo-hyuk, who gets enamored with Yu-bin at first sight, accepts. Woo-hyuk thus enters the underworld. What is it that awaits him, glory or ruin?