Started off great, good plots with many interesting and strong characters. Overall, it was enjoyable to read but after 100 chapters, quality dropped drastically, draggy and many plot holes even the enemy name has been changed suddenly. what a pity to mess up a potential and good manga. dropped.
rich, egoistic Mc gets betrayed. Some mysterious people catch him and he gets treated like a guinea pig. They takes his memory from him, cuz he is really good at finance, economics...
(Surgeons took memories from spinal cord, not hippocampus. Aaaand they add him a chip place, so they can insert new memories. i don't think they can add there a chip btw. Anatomy does not works like that. At the same time, just because you have other person's memory, that's doesn't mean you can act like them. thats makes no sense)