Character Relationship Map: Big Brother

Characters

• Henry Chen Xia (played by Donnie Yen) — protagonist

  Former US Marine turned teacher at Tak Chi Secondary School. Assigned to the notoriously difficult 6B class, he uses unconventional methods to gain control and mentor troubled students. He intervenes...

• Jack Li (played by Lok Ming-Kit) — supporting

  A student in Henry's 6B class who initially causes trouble but responds to Henry's guidance. He later gets entangled with MMA bettor Kane, gets locked in a locker after refusing to drug a fighter, and...

• Kane Luo (played by Yu Kang) — supporting

  An MMA bettor and antagonist who exploits Jack Li. He reveals a deep personal grudge against Henry Chen Xia for a childhood bullying incident that ruined his musical career. Kane orchestrates attacks...

• Bruce Guan (played by Bruce Tong Kwan-Chi) — supporting

  A student in 6B and twin brother of Chris. He struggles with a dysfunctional family and becomes addicted to prescription drugs to cope with academic pressure, leading to a severe fall. Henry promises...

• Chris Guan (played by Chris Kwan-Yiu Tong) — supporting

  A student in 6B and twin brother of Bruce. He works at a grocery store and initially faces abuse from his alcoholic father. After Henry intervenes, both twins are sent to a rehabilitation center where...

• Locki MMA Fighter (played by Lockhart Ogilvie) — minor
• Guan's Father (played by Felix Lok Ying-Kwan) — minor

Canonical Relationships

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

• Guan's Father → Bruce Guan (father)
• Locki MMA Fighter → Kane Luo (Professional Fighter In Betting Scheme) — The fighter is part of the MMA event connected to Kane's betting operation.

  Kane's plan involves Jack drugging a fighter's drink before a game, and Henry fights a professional fighter while rescuing Jack from Kane's operation.

• Guan's Father → Chris Guan (Family Father And Son) — Their relationship is damaged by his drinking but moves toward reconciliation.

  The twins' father shoves them out after they refuse to buy him beer, and later apologizes to them at the rehabilitation center.

• Henry Chen Xia → Chris Guan (Professional Teacher And Student) — Henry advocates for Chris and his brother amid their father's alcoholism.

  Henry confronts the twins' father about the boys' wellbeing, and Bruce and Chris later meet their father at a rehabilitation center after Henry's inte...

• Henry Chen Xia → Bruce Guan (Professional Teacher And Student) — Henry tries to support Bruce through family hardship and academic pressure.

  Henry reviews Bruce's background, promises to help him after he begins misusing prescription drugs, and is blamed by the media after Bruce's fall.

• Henry Chen Xia → Jack Li (Professional Teacher And Student) — Henry guides Jack and intervenes when he is exploited by Kane.

  Henry teaches Jack in class 6B, confiscates his cigarettes, and later rescues him after Kane's men lock him in a locker.

• Bruce Guan → Chris Guan (Family Twin Brothers) — The twins share a troubled home life and are reunited with their father during his rehabilitation.

  The plot identifies Bruce and Chris as twin brothers and describes their shared difficulties with their father.

Story Dynamics

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

• Henry Chen Xia → Guan's Father (Social Intervening Teacher) — Henry confronts him about the harm his behavior is causing his sons.

  Henry tells the twins' father to go to rehabilitation for the boys' wellbeing.

• Kane Luo → Jack Li (Conflict Exploiter) — Kane uses Jack in his betting operation and abandons him when the scheme is exposed.

  Kane tells Jack to drug a fighter's drink. After Jack is caught, Kane's group locks him inside a locker.

• Henry Chen Xia → Kane Luo (Conflict Former Bully And Grudge-Bearing Victim) — A childhood injury and humiliation fuel Kane's vendetta against Henry.

  Kane tells Henry that Henry threw water balloons at his piano and broke his arm when they were young, damaging Kane's chance to compete in a music con...

Story Analysis

A former Marine teacher earns the trust of a difficult class by supporting his students through personal crises and defending their chance to succeed.

Plot Progression

1. The Unruly Classroom — Henry returns to his former school and is assigned class 6B, whose students resist his authority. He uses an unexpected sprinkler stunt and practical lessons to get their attention.
2. Students Behind the Trouble — After a school fight, Henry looks into his students' circumstances and intervenes in their personal problems. His actions give Zufa a chance to perform and push the twins' father toward rehabilitation...
3. Kane's Threat Emerges — Jack becomes caught in Kane's MMA betting operation, and Henry rescues him. Kane's childhood grievance against Henry emerges as the class approaches its exams.
4. A Crisis Tests the Class — Bruce's drug misuse ends in a fall that leaves him in a coma, while public blame costs Henry his teaching license. The students respond by working harder to prove their teacher's ability.
5. The Exam and Reconciliation — Kane's employees try to keep the students from reaching their examination, but Henry fights to help them escape. After confronting Kane and asking forgiveness, Henry's students pass and he returns to...