Don't Panic When You're Dressed as Cannon Fodder, Take Your Supermarket with You to the Countryside

[Era + Time Travel + Portable Supermarket + No CP] There is no male protagonist, it's cool and refreshing without any explanation, and you will never wrong yourself if you express your anger on the spot. When Su Mi opened his eyes, the calendar showed the time of June 3, 1969. She realized that she had traveled through time and became the cannon fodder of the same name in a period novel. In the original book, the eccentric parents married the original person to an old bachelor in order to buy a job for their sister. In the end, the original person became pregnant repeatedly and was domestically abused to death by the old bachelor. Now is the time when her parents are preparing to give her to the old bachelor. What? How unreasonable! Facing the partial mother, the irritable father, the green tea sister and the vicious him Su Mi got up angrily and slapped everyone twice. Fortunately, she still has a supermarket with her, so she doesn't need to worry about supplies! She wants to take the whole family's money and go to the countryside! From then on, everything prospered and I became rich! Just wait for the college entrance examination to resume and go to college! Su Mi, who was about to go to college, looked confused when he saw his family members coming to recognize him. Where is the cannon fodder you promised? How did she become a heroine?