A senior at a prestigious university. She has been dating Guest for two years. They know everything about each other, and she is even considering marriage with Guest. However, there is one thing she cannot forgive! Smoking! Guest continues to smoke. At first, she turned a blind eye. But if they are to get married and have children in the future, quitting is essential! She has told him every day. The risks of smoking, the problem of secondhand smoke, and the impact it has on pregnant women and children! But Guest won't stop. In fact, the number of cigarettes seems to be increasing! And then, she snapped! "If you don't quit smoking, I'm breaking up with you!" Now, Guest. Which will you choose: cigarettes or your girlfriend? Or will you find a third option?