Character Relationship Map: Kingdom

Characters

• Ei Sei (Yin Zheng) / Piao (played by Ryo Yoshizawa) — protagonist

  King Ying Zheng and his slave double, central to the political struggle.

• Shukyou (played by Motoki Fukami) — supporting

  Elite assassin, highly skilled in stealth and combat.

• Cheng Jiao (played by Kanata Hongo) — supporting

  Qin prince, rebel brother of Ying Zheng, seeks the throne.

• Soldier (played by Ryûki Kitaoka) — minor

  Generic Qin military personnel, background combatant.

• Zuo Ci (played by Tak Sakaguchi) — minor

  Mysterious figure, possibly a strategist or healer.

• Chang Wen Ju (played by Masahiro Takashima) — supporting

  Qin general, strategic leader in Qin's army.

Canonical Relationships

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

• Chang Wen Ju → Soldier (Professional Military Commander) — The Soldier operates within Chang Wen Ju's military structure.

  Chang Wen Ju arrives with Ying Zheng's remaining army, placing ordinary Qin military personnel within the force supporting the royal campaign.

• Cheng Jiao → Soldier (Power Rebel Commander) — Cheng Jiao exercises military authority over the rebel army represented by the Soldier.

  The plot states that Cheng Jiao's army greatly outnumbers Ying Zheng's remaining soldiers during the succession conflict.

• Ei Sei (Yin Zheng) / Piao → Soldier (Power King And Servant) — The Soldier represents the military force serving Ying Zheng's claim.

  Ying Zheng commands a remaining army, while the Qin soldiers arrive at the summer resort and participate in the campaign to restore his throne.

• Ei Sei (Yin Zheng) / Piao → Zuo Ci (Professional Former General And Enemy) — A former military connection becomes a lethal confrontation.

  The plot calls Zuo Ci Ying Zheng's former general, and he later defeats the protagonist's group while protecting the royal opposition.

Story Dynamics

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

• Zuo Ci → Chang Wen Ju (Conflict Former Military Opponents) — Their military histories place them on opposing sides of the succession struggle.

  The plot identifies Zuo Ci as Ying Zheng's former general, while Chang Wen Ju leads the army that returns to support Ying Zheng against the opposing f...

• Cheng Jiao → Chang Wen Ju (Conflict Opposing Commanders) — Their military sides represent opposing claims to Qin power.

  Cheng Jiao commands an army of 80,000 against Ying Zheng's forces, while Chang Wen Ju leads the smaller Qin force supporting Ying Zheng.

• Cheng Jiao → Zuo Ci (Alliance Political Alignment) — Zuo Ci's actions protect the faction controlling Cheng Jiao's palace position.

  Zuo Ci intercepts the infiltration group inside the royal palace while Cheng Jiao remains the target of the attack and uses the resulting distraction...

• Ei Sei (Yin Zheng) / Piao → Chang Wen Ju (Alliance Royal Military Ally) — Chang Wen Ju supports Ying Zheng's military restoration.

  Chang Wen Ju searches for soldiers to aid Ying Zheng and later arrives with Ying Zheng's remaining army at the summer resort.

• Ei Sei (Yin Zheng) / Piao → Shukyou (Conflict Enemy) — Shukyou is an immediate physical threat to Ying Zheng's survival.

  Shukyou ambushes Ying Zheng and the protagonist at the meeting point, and the protagonist kills the assassin during their escape.

• Ei Sei (Yin Zheng) / Piao → Cheng Jiao (Conflict Rival Brothers) — Their succession conflict drives the central political crisis.

  The plot identifies Cheng Jiao as Ying Zheng's brother and describes his power struggle for the Qin throne against Ying Zheng.

Story Analysis

A former slave joins a threatened king and fights through assassination, betrayal, and war to protect a vision of national unification.

Plot Progression

1. Slaves Beneath the Sky — The protagonist and his fellow slave grow up in a village, train together, and dream of becoming generals. A royal recruiter changes their fate by selecting only the slave double.
2. The Burning Village — A mortally wounded friend delivers a map and warns of the royal power struggle. The protagonist leaves for the meeting point, unaware that the village is destroyed by the opposing army.
3. The King and the Double — The protagonist finds Ying Zheng and survives successive assassins while learning the truth about the royal double. Poison and grief force the group to seek shelter and reassess the political conflict...
4. A Mountain-Born Alliance — Ying Zheng's weakened army confronts overwhelming opposition and seeks help from a betrayed mountain ally. A loyalty test convinces the mountain tribe to restore its affiliation with Qin royalty.
5. Blood at the Royal Palace — The allied force infiltrates the palace under disguise and begins an internal assault. The protagonist defeats a formidable former general while the succession conflict reaches its decisive confrontat...
6. The King’s Unifying Vow — Ying Zheng defeats and spares his rival, then answers a final challenge about his future rule. His vow to unite China wins military support and completes the shared dream.