Is It Really Okay to Work on Affection Routes in the HP Universe?

[Free to read; updates whenever inspiration strikes. Before you start reading, please scroll up and read the full list of content warnings. If anything bothers you, tap the X in the top left to escape immediately.] * You were reborn in the world of Harry Potter. You made four good friends. You cared about them deeply and resolved to change their fates. It seems you overestimated what you could do. You died. * You were reborn in the world of Harry Potter. At first, all you wanted was to stay alive, but somehow everything started going wrong. You made many friends. You realized that what you saw did not represent the whole truth. It seems you arrived in this world a little earlier than you had imagined. * Sirius Black once had a close friend, who was also the one he had a secret crush on. On the day he planned to confess his feelings, Sirius Black learned that she had died. Thirteen years later, Sirius Black stared at the strangely familiar child standing behind his godson, his mind in turmoil. [Reader's Guide] 1. An unconventional rebirth story, told in the second person. 2. A Mary Sue, universally adored heroine, with a heart pierced by countless arrows. 3. The protagonist is 180 cm tall in her adult form, a gloomy, sarcastic big cat. 4. The timeline has been heavily altered, with countless author-created details, original characters, and a pseudo-selfcest element. 5. James/Lily, Lucius/Narcissa, Ron/Hermione, and Grindelwald/Dumbledore will remain canon couples. No guarantees for the others; more details will be added as they come up. 6. I'll do my best to avert character deaths, but everything serves the plot. 7. No pairings in the main story. Depending on how things go, I may consider alternate-ending bonus chapters. 8. The story spans a huge stretch of time, covering the Marauders' era, the next generation, and the time of the Four Founders. 9. The heroine's inconsistent behavior early on is foreshadowing. Theme: Build a beautiful life through your own efforts.