Inuyasha the Movie 4: Fire on the Mystic Island

Inuyasha the Movie 4: Fire on the Mystic Island

Year: 2004

Runtime: 88 mins

Language: Japanese

Director: Toshiya Shinohara

AdventureFantasyAnimation

The island of Houraijima, lost for fifty years, suddenly reappears, attracting the four divine antagonists called the Shitoushin, who seek the sacred powers that protect the island. Inuyasha, his friends, and even the aloof Sesshoumaru must unite to uncover the island’s secrets and defeat the powerful Shitoushin.

Warning: spoilers below!

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Timeline – Inuyasha the Movie 4: Fire on the Mystic Island (2004)

Trace every key event in Inuyasha the Movie 4: Fire on the Mystic Island (2004) with our detailed, chronological timeline. Perfect for unpacking nonlinear stories, spotting hidden connections, and understanding how each scene builds toward the film’s climax. Whether you're revisiting or decoding for the first time, this timeline gives you the full picture.

1

Hoarai Island reappears and a Kikyō look-alike emerges

The Cauldron of Resonance releases a green orb that gives life to a look-alike of Kikyō. Four scars appear on the backs of all the demon children except Ai, signaling a dark omen. Asagi quickly realizes the danger and urges Ai to flee while the others prepare to react.

Present day Hoarai Island, Cauldron of Resonance
2

Ai is urged to leave and is rescued by Inuyasha and friends

Asagi tells Ai to head for safety away from the island. Inuyasha, Kagome, Miroku, Sango, Shippo, and Kirara intervene to protect Ai from the emerging threat. The rescue solidifies the group’s resolve to uncover the mystery of Hoarai.

Present day Hoarai Island
3

Inuyasha explains the myth of Hoarai to the group

Inuyasha recounts how Hoarai appears only once every fifty years and foreshadows the danger posed by the Four War Gods. He connects the current reappearance to events from fifty years earlier involving Kikyō. The tale sets the group on a cautious path toward the Cauldron.

Present day Shore of Hoarai Island
4

Fifty years ago: ambush by the Four War Gods

In a flashback, the Four War Gods ambush Inuyasha and Kikyō on Hoarai Island. Gōra drains Kikyō’s blood to create her doppelgänger, while Ryūra marks Inuyasha with four scars. The attack explains the origins of the current crisis and the enemies’ power.

50 years ago Hoarai Island (past)
5

Kikyō investigates and Sesshomaru confronts Kyōra

As the island reappears, Kikyō decides to investigate its mystery, while Sesshomaru deviates from his group to confront Kyōra, who had given him his scars in the past. The rival confrontations elevate the stakes of the unfolding events. The pair split their attention between personal history and the present threat.

Present day Hoarai Island vicinity
6

Thunder Cannon assault and a dangerous shoreline escape

Jūra fires a Thunder Cannon at the advancing group. Miroku and Sango ride Kirara to deter the attack, while Inuyasha, Kagome, and Ai retreat to the island shore and encounter Ryūra. Kagome’s intervention saves Inuyasha from Ryūra’s assault, shifting the momentum of the encounter.

During initial assault Hoarai Island shore
7

Village discovery and Asagi’s sacrifice plan

The group reaches a village where they meet the children and learn that Asagi intends to sacrifice herself at the Cauldron to buy more time for the others. The vow to shield the others deepens the group’s resolve to stop the War Gods. They resolve to follow Asagi to the Cauldron.

Present day Hoarai Island village
8

The journey to the Cauldron: Inuyasha and Asagi pulled inside

The group follows Asagi toward the Cauldron, and during the attempt to destroy it, Inuyasha and Asagi are pulled into the depths of the Cauldron. The external world fights to keep the doors open as danger closes in. The internal struggle marks a turning point in the battle against the War Gods.

During attempt Cauldron of Resonance
9

Lady Kanade’s revelation and the power spheres

Inside the Cauldron, Lady Kanade reveals how past efforts failed and why the War Gods always regained power. She explains the power spheres’ role and sacrifices, then entrusts Inuyasha with a box containing the four spheres and her remaining strength to break the Cauldron. Her offer hinges on Inuyasha destroying the Cauldron and saving the children.

While inside Cauldron of Resonance
10

Destruction of the Cauldron and its aftermath

Inuyasha and Asagi free themselves and destroy the Cauldron, breaking Kagome’s bow and arrow in the process. The destruction frees powerful energies that begin to shift the balance of the island’s danger. The immediate threat intensifies as enemies react to the Cauldron’s collapse.

Immediately after Cauldron vicinity
11

The Kikyō doppelgänger exits and steals the spheres

As the Cauldron collapses, the Kikyō doppelgänger emerges from the orb and steals the power spheres, releasing them to the Four War Gods. This act restores their threat and forces the team to split up to counter multiple fronts. The group’s unity is tested as the battle lines realign.

After Outside the Cauldron
12

Climax battles: multiple fronts against the War Gods

Inuyasha confronts the doppelgänger, while Miroku and Sango ride Kirara to battle Jūra and Gōra. Kagome, Shippo, and the children attempt to build a raft to escape, only to be blocked by Ryūra. Sesshomaru takes on Kyōra, and the others push through the onslaught to protect the group.

Climax Hoarai Island
13

Real Kikyō returns and destroys the doppelgänger

The real Kikyō arrives and destroys her doppelgänger, then leaves behind her bow and arrow as a symbol of renewal. Inuyasha is saved by Kikyō, whose arrival shifts the tide of the battle. The reunion underscores the stakes of reclaiming power from the War Gods.

Climax Shore
14

Final defeat: a unified assault ends the War Gods

Kagome’s sacred arrow and Inuyasha’s Backlash Wave combine to destroy the final War God formed from the power spheres. The scars on those marked are removed as the threat dissolves. The island begins to collapse as the group makes their escape on a raft.

Final Island shore
15

Farewell: the children depart for freedom

With the threat vanquished, the children temporarily reside in Kaede’s village while they pursue their own freedom. Inuyasha and his friends bid them farewell, promising to meet again, and the group resumes their journey anew. The myth of Hoarai is laid to rest for good.

After final battle Kaede’s village

Last Updated: October 09, 2025 at 15:18

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