HP: Even the Boss Who Is Maxed Out but Has a Squishy Skin Needs to Go to School

[Harry Potter fanfic + original heroine + single arrow wholesale + multi-generation + GGAD] When Cishlot woke up, he found himself in Antarctica with only a wand in his pocket that was about to fall apart. She thought she was an unlucky time traveler, but fortunately she had read some of the original works. Until she stood in front of the Mirror of Erised and realized that it was herself in the mirror; but in Lupin's Defense Against the Dark Arts class, the Boggart transformed into what she feared most was herself. Cishlot:. . Are my left and right brains fighting each other? In order not to be accidentally injured by the Dark Lord in the finale, or to be frozen to death, starved to death, or killed by the plot, Cishiro decided: Low profile! Make money! Save your life! But who can tell her... What's going on? "Why do you all have so little magic power" —— Oh, Shura Field. Why are these people fighting over who she met first? What else is there to have a first lunch with? And the first long conversation? Xishluo looked at his friend who came from the gap in time and could only say hi with difficulty. After all, there were too many people to count who had been abandoned by her. It's ALL, no official match