HP: Let professors walk towards the light

Harry Potter Slytherin reports! Committed to giving the professor a bright future. Herma Reina seems to be stuck in a vicious circle. She always survives graduation, and if she dies, she has to repeat the days of going to school at Hogwarts from the first grade. Poor Reina went to school for 20 years, was cursed to death, and was reborn again, starting her fourth "study life at Hogwarts". She doesn't know whether she can return to the starting point after each death, so every time she spends a lot of effort to plan and plan, just to keep that person alive, the person she watched helplessly die. Snape feels that he has been a little strange recently...