My sister and I were reborn three days before the apocalyptic rainstorm. My sister took over the enlargement system again, and I chose the reduction system, which I had once despised. But in my sister's heart, she will always be the man across from me, but that man's family doesn't want to see my sister. Finally, I recognized my sister's true nature, spent all my savings to stock up on supplies, and used the shrinking system to shrink the house and supplies in my hometown into a secret room in the bedroom to build a self-sufficient safe house.
