The heroine is a pure-blooded descendant of Slytherin and comes from the 21st century (foreshadowing) to be a loyal fan.
She accidentally traveled to multiple time periods, redeemed different people, and changed their destiny. She... Also paid a certain price.
When time returned to normal, her Hogwarts life came, allowing the socket (Voldemort) to change his ways and become the Dark Lord Terminator. And she also paid the price, lost her mind and became the third generation Dark Lord. Her purpose was to kill everyone who was harmful to her, and was finally saved by her friends.
There are so many OOC characters, please avoid lightning. I've read a lot of articles and my hands are itchy. I want to write one. I won't abandon the article. I hope someone likes it. Although I am just to satisfy myself, please spray lightly. If you don't like it, you can take a detour. I accept the suggestions. I hope someone can give me some advice.
"Sister-"
"You... Ivan? You're not dead—"
"Ivan—"
"Little brat—"
Purpose: Save the world