Hogwarts: After Being Buried Alive, Looting Corpses Makes Me Stronger

【Ravenclaw + tomb raider + no hand-holding】 After transmigrating into the Harry Potter world, Benjamin became a 13-year-old Muggle boy in 1993, forced to work for a Scottish tomb-robbing gang. From the start, the gang leader treated him as disposable and ordered him buried alive in a graveyard. Luckily, he awakened the Tomb-Raiding System. By touching a corpse, he could obtain things the deceased had possessed in life, including magic, knowledge, and even lifespan and connections. Touch a treasure, and he could also earn System rewards, with a chance to trigger a hundredfold multiplier. “Congratulations, Host. You have obtained wizarding potential.” “Congratulations, Host. You have obtained the Animagus ability, Human Transfiguration.” “Congratulations, Host. You have obtained expert-level knowledge of Potions.” “Congratulations, Host. You have obtained one childhood sweetheart, Severus Snape.” Only when Benjamin heard the System’s notification did he realize he had touched the Chosen One’s parents! “Wait, I understand everything else, but what does ‘childhood sweetheart’ mean?!” “So there are actually quite a few ‘people’s’ graves at Hogwarts, right? Like the Basilisk, unicorns, and so on...” (Note: The protagonist is straight.)