Character Relationship Map: Beelzebub

Characters

• Beelbou (played by Miyuki Sawashiro) — protagonist

  Infant son of the Demon King discovered by Tatsumi. He forms a supernatural contract seal on Tatsumi's hand that grows with Tatsumi's malevolence. His suppressed power causes illness, and his unleashe...

• Oga Tatsumi (played by Katsuyuki Konishi) — protagonist

  Delinquent student at Ishiyama High who discovers and raises Beel with Hilda. He attempts to transfer the child to the Tōhōshinki, forming a binding contract seal. He battles MK5 assassins, fights Tōh...

• Hilda Garde (played by Shizuka Itoh) — supporting

  Demon maid tasked with raising Beel alongside Tatsumi. She is kidnapped by Himekawa but rescued by Tatsumi. When Beel falls ill, she departs for the demon world to seek medical aid.

• Furuichi Takayuki (played by Takahiro Mizushima) — supporting

  Tatsumi's friend who is kidnapped alongside Hilda by Himekawa, prompting Tatsumi to intervene and unleash the Zebul blast.

• Aoi Kunieda (played by Aki Toyosaki) — supporting

  Third member of the Tōhōshinki and leader of the Red Tails. She initially misunderstands Tatsumi's bluntness as romantic interest, is asked to be Beel's mother, and later warns Tatsumi about Tōjō's st...

• Alex Rodriguez Ichirou Shinjou (played by Daisuke Hirakawa) — supporting
• Shintarou Natsume (played by Daisuke Kishio) — supporting

  Classmate who exposes an MK5 conspiracy framing Tatsumi for attacking classmates, allowing Tatsumi to defeat the conspirators.

• Daimao (played by Hiroki Takahashi) — supporting
• Jabberwock (played by Kazuhiro Yamaji) — supporting

Canonical Relationships

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

• Aoi Kunieda → Beelbou (Family Potential Mother) — Tatsumi asks her to become Beel's mother
• Oga Tatsumi → Daimao (Power Master) — Demon King, Beel's father
• Hilda Garde → Beelbou (Family Mother Figure) — Demon maid who helps raise Beel
• Oga Tatsumi → Aoi Kunieda (Romantic Love Interest) — Girl who mistakes his bluntness for romantic interest
• Oga Tatsumi → Beelbou (Family Guardian) — Tatsumi is forced to raise Beel, the son of the Demon King

Story Dynamics

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

• Alex Rodriguez Ichirou Shinjou → Oga Tatsumi (Unknown) — Relationship unclear from provided information
• Shintarou Natsume → Oga Tatsumi (Alliance Ally) — Helps expose deception against Tatsumi
• Oga Tatsumi → Jabberwock (Conflict Enemy) — Antagonistic relationship
• Hilda Garde → Aoi Kunieda (Conflict Rival) — Challenges Aoi to test her strength
• Oga Tatsumi → Furuichi Takayuki (Social Friend) — Close friend who gets kidnapped
• Oga Tatsumi → Hilda Garde (Alliance Partner) — Allies in raising Beel

Story Analysis

The season follows an unwilling human caretaker whose bond with a demon child grows through domestic crises, delinquent conflicts, supernatural tests, and a dangerous journey into the Demon World.

Plot Progression

1. Unexpected Demon Custody — A delinquent student unexpectedly becomes responsible for a demon child whose cries threaten the human world. The supernatural contract creates an unwanted but unavoidable bond.
2. School Rivalries Expand — Attempts to transfer custody bring the protagonist into conflict with powerful delinquents and rival groups. Encounters at the park and school also introduce new social connections.
3. Attachment Through Conflict — The demon child develops attachments to a stray cat while the protagonist continues resisting his caretaker role. Rival revenge schemes repeatedly fail and reinforce the household's unusual stability.
4. The Fever and Rival Alliance — Supernatural testing and delinquent confrontations raise the stakes. The child's illness severs the contract temporarily and forces former rivals to cooperate.
5. Return to Demon World — After the contract is restored, an accidental journey carries the group into a dangerous demon-world region. A rescue mission ends with the demon child displaying overwhelming power against an awakene...