My Magician Senior is a Manga/Manhwa/Manhua in (English/Raw) language, SUGGESTIVE
series, english chapters have been translated and you can read them here. You are reading chapters on www.mcreader.net fastest updating comic site. The Summary is
This is a world where science and magic coexist. Here, some people pursue powerful magic, while others learn eternal truths. The protagonist, Blair, a mathematician who came from a different world, with left-handed magic and right-handed science, opens the door to a new world! Academic Dean? Supreme Witch? Senior Killer Brother? As an adult, I want it all!