A Billion in Supplies for the Apocalypse, Fighting Monsters with the Big Shot

[System] + [personal space] + [stockpiling supplies] + [powerful hero and heroine] + [monster hunting] + [female-oriented, female-oriented, female-oriented] The heroine is neither a bleeding heart nor cold-blooded. She’s level-headed: she’ll talk when talking is called for, fight when fighting is called for, spare those worth sparing, and kill those who deserve it. This is not a rebirth story. She never decides that someone deserves to die; she judges people by how they behave. One day, while beating up a creep who groped her, An Ruo, a nobody actress ranked 108th, unexpectedly received a ridiculous System. When she went to tell her boyfriend the great news about getting rich, the scumbag pulled a brilliant move that somehow landed her in the bed of a powerful movie star! An Ruo looked at the mess all over the floor. It had already happened, so what could she do? Make a run for it after sleeping with him, of course! That’s what all the novels say! I kick awful blind dates and punch two-timing bastards. That’s right, being rich is awesome! Before she could even finish enjoying herself, the System gave her a personal space and announced that the apocalypse was coming. “Go survive. If you live, you’re my Host. If you die, I’ll get another Host. It’s no trouble for me to switch, so go ahead and die early if you want!” So here’s the question: how do you live a happy life in the apocalypse with a movie star on your right arm and zombies to pet with your left? P.S. This apocalypse is a little different. There’s a male lead and romance, so it’s still sweet. And there’s more to it than sweetness, since the author is a bit of a weirdo. Read at your own discretion! Of course, there are surprises for those who wander in by mistake!