Manager Seo Industrial Accident is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

"Why should we care about free-to-play players" Seo Sa-hyuk, a planner who neglected gameplay and focused only on monetization elements, has now fallen victim to his own greed for making money, working tirelessly through the night until he succumbed to overwork. In his unfortunate situation, he wakes up once again... "This place is just like the game I used to create...!!" The demonic planner who tormented gamers is now experiencing the consequences he sowed, a story of redemption and transformation begins!