Imagine waking up with a second chance to save the world, armed with the knowledge of its impending doom. In Nightsummer20's *Rebirth: 100 Days Before Doomsday*, Grace Blackwood gets just that. After enduring five brutal years in a ravaged world, betrayed by those she trusted, Grace finds herself inexplicably hurled back in time. The clock is ticking, with only 100 days until the cataclysmic event that will shatter civilization. But this isn't just a do-over; it's a chance for retribution and preparation. Gifted with a unique, system-enhanced space inherited from her family, Grace is determined to rewrite her fate. She meticulously plots her revenge against those who wronged her, amasses vital resources, and forges crucial alliances to bolster her chances of survival. The first time around, Grace faced the apocalypse alone, a solitary figure battling insurmountable odds. This time, however, destiny has other plans. She finds herself surrounded by four fiercely loyal men, each willing to lay down their lives to protect her. Haunted by the loss of her loved ones in the previous timeline, Grace is unyielding in her resolve to safeguard them at all costs. Driven by vengeance, fortified by newfound companionship, and armed with future knowledge, Grace is ready to confront the apocalypse head-on, stronger and more prepared than ever before. But can she truly alter the course of fate, or is she merely delaying the inevitable?