A cataclysm decimated half of humanity and obliterated nations, followed by a mysterious phenomenon that rendered all survivors unconscious. Upon awakening, select individuals learned a grim truth: the world faces annihilation in ten years through ten successive catastrophes, culminating in total extinction. Simultaneously, another group discovered salvation lies beyond their realm. This revelation unlocked a passage to an alternate world where answers to save their dying civilization could be found. The saviors were youths under twenty, gifted with awakened powers capable of transcending dimensional barriers. Idan remained among the unchosen—until his older sister's fortune shifted everything. One year into the first disaster, he attended a prestigious celebration honoring humanity's triumph over the initial calamity. At the ball, a mysterious force intervened. A girl caught his attention, and destiny activated within him: the Supreme Husband System. She simultaneously received the Supreme Wife System, their fates now intertwined. His system's first decree was absolute—propose marriage within twenty-four hours. The clock was ticking, and their mysterious bond had just begun.