Chapter 5: The Secret Probability Distribution of X and Y

Chi-yeol and Haeng-seon discuss the terms of tutoring to both sides' agreement. The most important thing is to keep it a secret because that could bring unnecessary problems. One night, Haeng-seon is drinking and Chi-yeol is trying to make her stop but she tells him she will not go until she finishes the bottle. He helps her to speed things up, but his alcohol tolerance is very low and she ends up towing him to her place. In the morning, he storms out as fast as he can, but forgets his belt. As she brings it outside to give it to him, they are spotted by her best friend and his assistant who were wondering why his car is parked so early in the vicinity.