Character Relationship Map: Endless Rain

Characters

• Young-ho (played by Kang Ha-neul) — protagonist

  Young-ho is the central character, reflecting on hope, failure, memory, and the possibility of miracles. Once a struggling cram-school student, he becomes connected with So-hee through letters, shares...

• So-hee (played by Chun Woo-hee) — supporting

  So-hee becomes Young-ho's intimate correspondent after their connection begins with an elementary-school assignment about someone who is waiting. She discusses talent, effort, imagination, loneliness,...

• Soo-jin (played by Kang So-ra) — supporting

  Soo-jin is a supportive presence in Young-ho's life during his difficult period of studying and uncertainty. She encourages him to stop studying temporarily and impulsively takes him to the ocean, giv...

• So-yeon (played by Lee Sul) — supporting

  So-yeon was Young-ho's elementary-school classmate, whose death from an illness in 2003 is discovered while he searches for information about the past. Learning what happened to her forces Young-ho to...

• Teacher (played by Kim Sung-kyun) — supporting

  The Teacher appears in Young-ho's cram-school period and bluntly warns the students that most of them will fail. This harsh statement intensifies Young-ho's preoccupation with mathematics, failure, an...

• Cram School Student (played by Lee Ye-hwan) — supporting
• Student (played by Kim Min-seo) — minor

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Teacher → Cram School Student (Professional Instructor)

  The Teacher delivers a warning about failure to the students at the cram school.

• Teacher → Student (Professional Instructor)

  The Teacher harshly tells the students that most of them will fail.

• Young-ho → Teacher (Professional Student And Teacher)

  Young-ho is struggling in a cram school when the Teacher addresses the students about failure and their likely futures.

• Young-ho → So-hee (Romantic Interest)

  Young-ho's feelings for So-hee deepen, and he asks to meet her on December 31. So-hee agrees to meet if it rains.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Young-ho → So-yeon (Social Former Classmate)

  Young-ho learns that So-yeon, described as an elementary-school classmate, died from an illness in 2003.

• Young-ho → Soo-jin (Social Friend)

  Soo-jin spends time with Young-ho, encourages him to stop studying, and takes him impulsively to the ocean.

Story Analysis

A quiet romance about memory, regret, and the hope that an improbable meeting can become real.

Plot Progression

1. Rain and Uncertain Beginnings
2. Lessons in Failure
3. Letters Across Distance
4. The Sea and Hidden Feelings
5. A Promise Measured by Rain