Extracurricular (2020) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Oh Ji-soo
(played by Kim Dong-hee) — protagonist
Bae Gyu-ri
(played by Park Ju-hyun) — protagonist
Seo Min-hee
(played by Jung Da-bin) — supporting
Kwak Ki-tae
(played by Nam Yoon-su) — supporting
Lee Hae-gyoung
(played by Kim Yeo-jin) — supporting
Lee Wang-cheol
(played by Choi Min-soo) — supporting
Cho Jin-woo
(played by Park Hyuk-kwon) — supporting
Na Seong-mi
(played by Seo Ye-hwa) — supporting
Byung-kwan
(played by Kim Kwang-kyu) — supporting
Cho Mi-jun
(played by Baek Joo-hee) — supporting
Canonical Relationships
Family, romantic, and professional connections based on plot evidence.
Oh Ji-soo → Lee Hae-gyoung
(Professional Student) — Teacher-student relationship
Oh Ji-soo → Lee Wang-cheol
(Professional Debtor) — Ji-soo owes money to Lee Wang-cheol
Story Dynamics
Alliances, conflicts, and narrative interactions that evolve throughout the story.
Oh Ji-soo → Cho Mi-jun
(Social Classmate) — High school classmate
Oh Ji-soo → Byung-kwan
(Narrative Informant) — Byung-kwan provides information to Ji-soo
Oh Ji-soo → Na Seong-mi
(Social Acquaintance) — Knows each other through school
Lee Wang-cheol → Cho Jin-woo
(Alliance Partner) — Criminal partners
Bae Gyu-ri → Seo Min-hee
(Social Friend) — Close friends in high school
Oh Ji-soo → Kwak Ki-tae
(Social Acquaintance) — Knows each other through school
Oh Ji-soo → Seo Min-hee
(Social Classmate) — High school classmates with complex connection
Oh Ji-soo → Bae Gyu-ri
(Social Classmate) — High school classmates with complex connection
Story Analysis
The season follows a hidden business as it moves from secrecy and blackmail into police scrutiny, interpersonal betrayal, kidnapping, and an unresolved continuation.
Plot Progression
Secret Enterprise
— The season opens by contrasting an inconspicuous school identity with a dangerous hidden business. The missing operating phone immediately turns secrecy into blackmail and panic.
Pressure and Partnership
— The central student searches for his father while facing financial instability. A classmate presses to enter the operation and offers a solution that changes the balance between them.
School and Family Strain
— The revived business remains vulnerable because its cash cannot be stored safely. Bullying, family conflict, and disappointment over a birthday present widen the emotional and practical pressure.
Police Escalation
— An observant police officer takes interest in the worker, who is subsequently dismissed from her job. Her distress draws the student into a more personal and unstable situation.
Kidnapping and Aftermath
— A dangerous encounter, a narrow hospital escape, and a kidnapping ultimatum push the season into a life-threatening climax. The final commitment to the business and the remaining police questions leav...
