This is a solid 4 star / 5 Manhwa, not to held as a copy of the Solo Max Level Newbie (despite the similarities. Not an Isekai but Regressor of a Shadow Organization who went back in time to do things correctly. A fairly generic story of Korean Manhwa's, rating wise, it's not bad. The possible reason why people may not be into this series, is due to the plot being mainstream. Action, Characters, Plot aren't bad by any means, it's just simply staying true to what a Korean Manhwa Regressor is. It's not bad, it's just lacking originality but that that can be goodin it's own way. After all the Manhwa is staying true to its name. You can start reading series if you wish, it's just not peak, it's close, but just not there.