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Season 1 Episode
- Season 1 You and I, the Intersection of Two Universes
- Season 1 Probability of Encountering Your Enemy at Your Worst
- Season 1 Number of Outcomes Where Dislike Becomes Like
- Season 1 Revolt of the Arithmetic Sequence
- Season 1 The Secret Probability Distribution of X and Y
- Season 1 There Are No Correct Answers in Life, Only Best Answers
- Season 1 The Very Average Laws of Attraction
- Season 1 Chance Becomes Fate through Inductive Reasoning
- Season 1 The Butterfly Effect of Our Relationship
- Season 1 Emotion, the Variable That Alters Relationships
- Season 1 The Functional Relationship of Our Love
- Season 1 Point of Intersection between Comedy and Tragedy
- Season 1 How We Approach an Unsolvable Conjecture
- Season 1 Find the Unique Solution
- Season 1 The Result of Chance and Inevitability
- Season 1 You and I, the Union of Two Universes
Crash Course in Romance - Season 1 Episode 9 The Butterfly Effect of Our Relationship
8.25 73 minutes Chi-yeol and Haeng-seon deal with the fallout after their secret is discovered — forcing the two to confront what it means for them moving forward.
