The person in question is the only guy who uses magic, and he/she is fighting against organization and or crime syndicate. the one that come close is Death March Death Play, however there should be more. Only 1 person can use magic, normally it is MC but Major supportive character is also an option. sometimes 2-4 person may also have similar power but I prefer 1. Also, not something like magical index, nor koukoussei, and it’s alright for a person to discover cheat power here but I prefer person reverse isekaid.
Closest ones I could think of are K, Read or Die & Darker than Black, but they're more supernatural i/o fantasy These ones is more into omyouji, I think? Kaze no Stigma (anime) & Nurarihyon no Mago (yokai vs yokai, though it's more like Yakuza gang fights IMHO)
I read that, it is good, but it does not fit my criteria. This is a person who got isekaid and in later stories he or she has to do with crime and organizations. If you remember God of Blackfield, the atmosphere should be like this but the protagonist have magic. As people suggest this, most titles don’t have extreme mysteries and escaping from organization. Charlotte have this atmosphere especially the latter half. Also I wish that the protagonist has travel around the world on earth.