Dr. Brain is a Manga/Manhwa/Manhua in english language, Drama 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

Since his youth, Lee Sewon has been fascinated with neuroscience, but now he’s taken it to the next level. He’s developed a method to hack directly into the brain and extract memories from the bodies of the deceased. When a private detective approaches Sewon about using his discovery to solve crimes, the young scientist sees an opportunity to test his limits. But what he doesn’t see is the danger ahead. As Sewon becomes embroiled in investigations, he realizes just how dangerous the mind can be.