Crash Course in Romance

• 
  E1

  You and I, the Intersection of Two Universes

  As 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 · 75m
• 
  E2

  Probability of Encountering Your Enemy at Your Worst

  Nam 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 · 75m
• 
  E3

  Number of Outcomes Where Dislike Becomes Like

  Haeng-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 · 73m
• 
  E4

  Revolt of the Arithmetic Sequence

  Haeng-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 · 69m
• 
  E5

  The Secret Probability Distribution of X and Y

  Haeng-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 · 76m
• 
  E6

  There Are No Correct Answers in Life, Only Best Answers

  A 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 · 76m
• 
  E7

  The Very Average Laws of Attraction

  Hae-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 · 70m
• 
  E8

  Chance Becomes Fate through Inductive Reasoning

  Haeng-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 · 67m
• 
  E9

  The Butterfly Effect of Our Relationship

  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.

  2023-02-11 · 71m
• 
  E10

  Emotion, the Variable That Alters Relationships

  A public revelation leaves Haeng-seon and Chi-yeol's relationship in limbo. Meanwhile, Chi-yeol faces the repercussions of recent events.

  2023-02-12 · 72m
• 
  E11

  The Functional Relationship of Our Love

  Tired 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 · 74m
• 
  E12

  Point of Intersection between Comedy and Tragedy

  A 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 · 77m
• 
  E13

  How We Approach an Unsolvable Conjecture

  Hae-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 · 74m
• 
  E14

  Find the Unique Solution

  News 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 · 73m
• 
  E15

  The Result of Chance and Inevitability

  Lee 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 · 76m
• 
  E16

  You and I, the Union of Two Universes

  Grappling 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 · 77m

Top cast

Jeon Do-yeon

Nam Haeng-seon

Jung Kyung-ho

Choi Chi-yeol

Shin Jae-ha

Ji Dong-hui

Lee Bong-ryeon

Kim Yeong-ju

Oh Eui-sik

Nam Jae-woo

Roh Yoon-seo

Nam Hae-e

Jang Young-nam

Jang Seo-jin

Kim Sun-young

Cho Su-hui

Hwang Bo-ra

Lee Mi-ok

Heo Jeong-do

Kang Jun-sang

Lee Chae-min

Lee Sun-jae

Kang Na-eon

Bang Su-a