My Goal Is the University of Tokyo's Medical School

The neighboring novels, "Miss Illusionist Will Never Be a Canned Pineapple" and "Transmigrating into a Book as an International Student, Surviving Online," are currently updating. If you're interested, feel free to check them out~ Here's the blurb: Mori Tarou: A high school student at PK Academy. He's loved medicine since he was young, and his goal is to get into Todai's medical school. But he has a secret: his "younger sister," Mori Mari, is actually his special ability. His all-powerful childhood friend and deskmate, Kusuo Saiki, aka Kusuo A-doraemon: So the reason you want to get into Todai and become a doctor is to buy lots of cute little dresses? Mori Tarou: No, there's another reason: so I can dissect human bodies in broad daylight. One day, as he stepped outside with his adorable little Mari-chan, the world spun around him, and he found himself on an unfamiliar street. There was also a crowd of men in black suits who thought he was the illegitimate son of the Port Mafia boss. Mori Tarou: Wasn't that decrepit old man devoted to politics...? What do you do when a blood test identifies you as a Mafia boss from the past? Mori Tarou: ...Obviously, I run away with Mari-chan. There's no way I'm joining an illegal organization. Kusuo, come save me! The psychic who went to great lengths to tear through the dimensional wall and save his troublesome deskmate: ... Note: A parallel-world version of young Mori Tarou, with a lighthearted, comedic slice-of-life tone. Characterization may be OOC! Don't read if that's not your thing! Pairing tentatively: Saiki Premise: Work hard and get into Todai