Heartbreak Library (2008) character relationship network mapped with AI analysis. Explore the connections, alliances, and conflicts between characters.
Characters
Kim Joon Oh
(played by Lee Dong-wook) — protagonist
Kim Joon Oh is the mysterious man who visits the seaside library every day in a black suit, tearing page 198 from each book. Following a note left by his vanished girlfriend, he searches hundreds of b...
Chairman Song
(played by Lee Jae-yong) — protagonist
Jo Eun-soo
(played by Eugene) — supporting
Jo Eun-soo is a conscientious librarian who catches Kim Joon Oh damaging books and initially reports him to the police. After learning why he searches page 198, she becomes curious and checks the libr...
Hong-soo
(played by Ki Joo-bong) — supporting
psychiatrist
(played by Lee Jong-gu) — supporting
law student
(played by Park Hwi-sun) — supporting
office employee
(played by Jo Hyun-wu) — minor
Sleeveless
(played by Na Hyun) — minor
Dorm Student
(played by Park Hwi-soon) — minor
Sun-mi
(played by Jo Ah-ra) — supporting
Monk
(played by Choe Won-kyung) — minor
neighbourhood girl
(played by Yoo Da-in) — supporting
Mr. Kim (guard)
(played by Jo Deok-hyeon) — supporting
miss Paeng
(played by Koh Soo-hee) — minor
pharmacist
(played by Jung Eun-pyo) — minor
Story Analysis
A story of two heartbroken individuals who transform suspicion into a collaborative quest for closure.
Plot Progression
The Vandal in Black
— Eun-soo catches Joon-oh tearing pages from books and initially reports him to the police. Despite the confrontation, her professional curiosity begins to override her hostility.
The Note's Secret
— The narrative reveals the mysterious note left by Joon-oh's girlfriend, explaining his daily ritual of extracting page 198. Eun-soo investigates the library database and uncovers a trail of 956 books.
Heartbreak Mirrors
— Eun-soo advises Joon-oh to let go, but her own recent breakup resonates deeply with his obsession. Their parallel emotional states create a bridge of mutual understanding.
The Deciphering Alliance
— Transforming conflict into collaboration, Eun-soo officially joins Joon-oh to decode the hidden messages across all 956 books. Their shared quest becomes a path toward emotional healing.
