Season 1
A mother with a heart of gold navigates the cutthroat world of private education when her daughter tries to join a celebrity math instructor’s class.
01 You and I, the Intersection of Two Universes
1h 15mAs 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.
2023-01-14 9.0
02 Probability of Encountering Your Enemy at Your Worst
1h 15mNam 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.
2023-01-15 8.0
03 Number of Outcomes Where Dislike Becomes Like
1h 13mHaeng-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.
2023-01-21 9.0
04 Revolt of the Arithmetic Sequence
1h 9mHaeng-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.
2023-01-22 9.0
05 The Secret Probability Distribution of X and Y
1h 16mHaeng-seon and Chi-yeol work out an arrangement for Hae-e's tutoring. A mysterious tragedy leaves the academy and its parents rattled.
2023-01-28 9.0
06 There Are No Correct Answers in Life, Only Best Answers
1h 16mA painful past comes back to haunt Chi-yeol. Bang Su-a becomes suspicious of Hae-e after finding her secret worksheets on her desk.
2023-01-29 9.0
07 The Very Average Laws of Attraction
1h 10mHae-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.
2023-02-04 9.0
08 Chance Becomes Fate through Inductive Reasoning
1h 7mHaeng-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.
2023-02-05 9.0
09 The Butterfly Effect of Our Relationship
1h 11mChi-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.
2023-02-11 9.0
10 Emotion, the Variable That Alters Relationships
1h 12mA public revelation leaves Haeng-seon and Chi-yeol's relationship in limbo. Meanwhile, Chi-yeol faces the repercussions of recent events.
2023-02-12 9.5
11 The Functional Relationship of Our Love
1h 14mTired 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.
2023-02-18 9.0
12 Point of Intersection between Comedy and Tragedy
1h 17mA shocking arrest leaves the academy's parents — and Hae-e — concerned. Haeng-seon and Chi-yeol maneuver the days after their first fight.
2023-02-19 9.0
13 How We Approach an Unsolvable Conjecture
1h 14mHae-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.
2023-02-25 8.0
14 Find the Unique Solution
1h 13mNews 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.
2023-02-26 9.0
15 The Result of Chance and Inevitability
1h 16mLee 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.
2023-03-04 9.0
16 You and I, the Union of Two Universes
1h 17mGrappling with her mother's return, Hae-e announces a shocking decision. Haeng-seon and Chi-yeol make a pivotal choice about their future.
2023-03-05 9.5
Who is in it
Jeon Do-yeonNam Haeng-seon
Jung Kyung-hoChoi Chi-yeol
Shin Jae-haJi Dong-hui
Lee Bong-ryeonKim Yeong-ju
Oh Eui-sikNam Jae-woo
Roh Yoon-seoNam Hae-e
Jang Young-namJang Seo-jin
Kim Sun-youngCho Su-hui
Hwang Bo-raLee Mi-ok
Heo Jeong-doKang Jun-sang
Lee Chae-minLee Sun-jae
Kang Na-eonBang Su-a