Seasons & episodes
Season 1
1. You and I, the Intersection of Two Universes
75 min
Play episodeAs competition in her class ramps up, Nam Hae-e anxiously awaits her math score. Choi Chi-yeol is embroiled in a scandal involving one of his students.
2. Probability of Encountering Your Enemy at Your Worst
75 min
Play episodeNam Haeng-seon attempts to register Hae-e into The Pride Academy. Desperate for Haeng-seon's food, Chi-yeol visits her store in a disguise.
3. Number of Outcomes Where Dislike Becomes Like
73 min
Play episodeHaeng-seon begins fawning over Chi-yeol after discovering his true identity. A change in the Pride Academy's schedule creates a stir among the parents.
4. Revolt of the Arithmetic Sequence
69 min
Play episodeHaeng-seon gets a taste of the vicious politics among the academy's parents. She later goes to great lengths to make things right for Hae-e.
5. The Secret Probability Distribution of X and Y
76 min
Play episodeHaeng-seon and Chi-yeol work out an arrangement for Hae-e's tutoring. A mysterious tragedy leaves the academy and its parents rattled.
6. There Are No Correct Answers in Life, Only Best Answers
76 min
Play episodeA painful past comes back to haunt Chi-yeol. Bang Su-a becomes suspicious of Hae-e after finding her secret worksheets on her desk.
7. The Very Average Laws of Attraction
70 min
Play episodeHae-e ranks first in her class, causing drama among other parents. Chi-yeol and Haeng-seon grow closer as he spends more time with her family.
8. Chance Becomes Fate through Inductive Reasoning
67 min
Play episodeHaeng-seon realizes her own feelings after seeing Chi-yeol at the academy. Su-a connects the dots and begins to make sense of Hae-e's recent successes.
9. The Butterfly Effect of Our Relationship
71 min
Play episodeChi-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.
10. Emotion, the Variable That Alters Relationships
72 min
Play episodeA public revelation leaves Haeng-seon and Chi-yeol's relationship in limbo. Meanwhile, Chi-yeol faces the repercussions of recent events.
11. The Functional Relationship of Our Love
74 min
Play episodeTired of her loved ones facing scrutiny, Hae-e makes a bold confession to the world. Haeng-seon and Chi-yeol navigate their road ahead post-scandal.
12. Point of Intersection between Comedy and Tragedy
77 min
Play episodeA shocking arrest leaves the academy's parents — and Hae-e — concerned. Haeng-seon and Chi-yeol maneuver the days after their first fight.
13. How We Approach an Unsolvable Conjecture
74 min
Play episodeHae-e attempts to get a hold of Lee Sun-jae after being put in a difficult position at school. Haeng-seon catches Ji Dong-hui in a hostile moment.
14. Find the Unique Solution
73 min
Play episodeNews about Hae-e leaves those around her feeling rattled. Haeng-seon begins to suspect something's off. Chi-yeol confronts Dong-hui about his behavior.
15. The Result of Chance and Inevitability
76 min
Play episodeLee Sun-jae's confession ignites a scandal at the school. Chi-yeol attempts to put an end to Dong-hui's scheme before it's too late.
16. You and I, the Union of Two Universes
77 min
Play episodeGrappling with her mother's return, Hae-e announces a shocking decision. Haeng-seon and Chi-yeol make a pivotal choice about their future.
