Severus's Pocket Dimension

How did I go from working hard in the experimental field to waking up in a different body? Lin Xi, a newly graduated animal husbandry technician, has become one of history's most famous tragic figures: Severus Snape. Why me? And why do I have to start out as an abused child? At five years old, it's too late: the secret of being a "monster" has been exposed, and the abuse at home has already begun! At five years old, it's too early: Hogwarts is still six years away. Can this high-scoring, low-ability kid raised under the red flag even survive that long? Fine, fine. I even brought an experimental field with me. Sigh, apart from some advanced temperature-control equipment, it's just an ordinary field, and the lake doesn't have any fish. Ah!!!! Theme: