Quick Transmigration: I Have a Number 250

Lin Mo was a lonely girl with no one to rely on. Shortly before she died, she accidentally learned about her parents. She couldn't accept it. She wanted to live, but she had cancer. Her desperate will to survive was detected by a System in a fantastical space, and their souls merged. Hey, why are you so bad-tempered? 250: Would you be in a good mood if you were called back to work during your vacation? You had to die right when I was on vacation, not sooner or later! Hey, why are you helping me? 250: Come on, I want to go back to my vacation... Don't you want to return to your own world, too? Hey, why would you risk your life? 250: Why does there have to be a reason? Because I want to!