Character Relationship Map: Death Bell 2

Characters

• Eun-su (played by Hwang Jung-eum) — supporting

  A teacher who joins the school two years after a student's death. She uncovers the past sins of the study group, allies with Jung-bum to enact revenge, and sets a lethal phone call trap. She is beaten...

• Se-hee (played by Park Ji-yeon) — supporting

  The stepsister of the deceased student Tae-yeon, she suffers from nightmares and bullying. Revealed as a past bystander in the study group's crimes, she is chained to Jung-bum in the pool but is mirac...

• Kwan-woo (played by Yoon Shi-yoon) — supporting

  A student who devises a critical escape plan using butane cylinders to blast open the school gates. He and Na-rae search for the missing Se-hee, attempt to break her chain with Jung-bum, and successfu...

• Soo-il (played by Ji Chang-wook) — supporting

  A past student who was forced by the study group to assault Tae-yeon. His actions during the struggle contributed to the tragic events that led to Ji-yoon's death and the subsequent cover-up.

• Na-rae (played by Park Eun-bin) — supporting

  A classmate who joins Kwan-woo in the search for the missing Se-hee. She assists in trying to break the chain binding Se-hee and Jung-bum in the pool, surviving the ordeal alongside Kwan-woo and Se-he...

• Jung-bum (played by Son Ho-jun) — supporting

  A student falsely accused of murder and confined to a mental facility; he later plans revenge with his sister against those responsible for his and his mother's suffering.

• Tae-yeon (played by Yoon Seung-ah) — supporting

  A student initially found dead in the school pool, ruled as suicide. Her death sets the revenge plot in motion, and her ghost ultimately appears to free Se-hee from a deadly chain, disappearing into t...

• Jung-bum's Mother (played by Lee Yong-nyeo) — minor

  Jung-bum's mother, whose death is part of the tragedy that motivates the revenge plot.

Canonical Relationships

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

• Eun-su → Se-hee (Professional Teacher And Student) — Their school relationship becomes important when Se-hee's past is exposed.

  Eun-su joins the high school as a teacher, while Se-hee is one of the students attending the summer study camp.

• Eun-su → Jung-bum (Family Sibling) — Their sibling relationship connects the school revenge plan to Jung-bum's past.

  The plot reveals that Eun-su is Jung-bum's sister.

• Se-hee → Tae-yeon (Family Stepsister) — A family bond marked by grief, guilt, and Se-hee's memories of Tae-yeon.

  The plot identifies Se-hee as Tae-yeon's stepsister and shows her haunted by Tae-yeon's death.

• Jung-bum → Jung-bum's Mother (family)

  The plot identifies her as Jung-bum's mother and says her death followed his false accusation.

Story Dynamics

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

• Se-hee → Soo-il (Social Study Group Associate) — Their connection comes from the study group's shared past and its fatal conduct.

  The plot reveals that Se-hee was present as a member of the study group on the night Soo-il was pushed toward Tae-yeon.

• Tae-yeon → Jung-bum (Conflict Supernatural Counterforce) — The ghost's intervention prevents Jung-bum's revenge from killing Se-hee.

  After Tae-yeon's ghost releases Se-hee, Tae-yeon and Jung-bum disappear slowly into the darkness of the pool.

• Se-hee → Jung-bum (Conflict Drowning Victim And Avenger) — Their final confrontation turns Se-hee's past guilt into a direct life-or-death struggle.

  Jung-bum chains himself and Se-hee together and jumps into the pool to drown them both.

• Soo-il → Jung-bum (Conflict False Accuser's Target) — The incident involving Soo-il becomes part of the false case against Jung-bum.

  The group used testimonies to falsely accuse Jung-bum of the murder after the struggle involving Soo-il and Tae-yeon.

• Soo-il → Tae-yeon (Conflict Assault Participant) — Soo-il is directly involved in the violent incident surrounding Tae-yeon's death.

  The study group pressured Soo-il to have sex with Tae-yeon, and the ensuing struggle contributed to Tae-yeon's death.

• Na-rae → Se-hee (Alliance Rescue Ally) — Na-rae supports the effort to rescue Se-hee during the final crisis.

  Na-rae returns with Kwan-woo to find Se-hee and helps try to break the chain binding Se-hee to Jung-bum.

• Kwan-woo → Na-rae (Alliance Rescue Partner) — They cooperate repeatedly during the escape and rescue efforts.

  Kwan-woo and Na-rae search for the missing Se-hee and return to the pool together.

• Kwan-woo → Se-hee (Alliance Rescuer) — Kwan-woo directly acts to save Se-hee from both drowning and death.

  Kwan-woo goes back for the missing Se-hee, attempts to break her chain in the pool, and later revives her with CPR.

Story Analysis

A sealed-school revenge mystery exposes a buried crime and ends with supernatural intervention and survival.

Plot Progression

1. A Death Beneath The Water — Tae-yeon's apparent suicide establishes the tragedy haunting the school. Two years later, Eun-su arrives as Se-hee struggles with nightmares and bullying.
2. The Locked Study Camp — The summer study camp brings students and teachers into the school. The coach is murdered, a threatening message appears, and a voice announces a lethal investigation.
3. Clues Cannot Save Them — Deaths multiply inside the sealed school. The group tries to decode photographs and save a trapped teacher, but the dryer becomes a fatal test.
4. The Buried Crime — The survivors uncover the study group's assault, the fatal struggle, and the false accusation that destroyed Jung-bum's life. Eun-su's family connection to Jung-bum reveals the revenge structure.
5. Fire At The Pool — The phone trap fails and the school burns as Jung-bum's revenge reaches its final stage. Se-hee confronts her past before Tae-yeon's ghost saves her from the pool.