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Season guide

Rumbling Hearts: Season 1

14 episodes Premiered Oct 4, 2003 Updated Oct 6, 2026
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Season 1 Episodes

Episode Guide

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Binge Efficiency Engine

Season 1: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

29%
71%
Mytharc (4): Crucial lore & season climaxes
Core (10): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Friends to Lovers

Oct 4, 2003 · 24 min

High school is almost over, but Haruka has never seen the fruition of her deep crush on Takayuki.  Not to worry.  With her best friend’s help, Haruka is going to learn what it mean

S1·E2 Core

Waiting

Oct 11, 2003 · 24 min

Life could not be better for Haruka and Takayuki. But unexpected feelings of jealousy drive Mitsuki to meddle. Running late for his date with Haruka, Takayuki bumps into Mitsuki on

S1·E3 Core

Moving On

Oct 18, 2003 · 24 min

Three years have passed since the tragic accident.  Even though Takayuki, Mitsuki, and Shinji have continued their lives; Haruka has been stuck in a coma and left in the hospital.

S1·E4 Core

Betrayed by Love

Oct 25, 2003 · 24 min

Takayuki and Mitsuki are a happy couple, so much so that they're planning on moving in together. But all of that happiness and security is put into question when the unthinkable ha

S1·E5 Mytharc

Lead Astray

Nov 1, 2003 · 24 min

It’s been a year since the accident and Takayuki is in a deep rut of grief.  Mitsuki does everything she can to keep his spirits up, but it seems as if nothing can jar him from his

S1·E6 Core

Wishing

Nov 8, 2003 · 24 min

Haruka’s condition has them all living out a warped high school daydream, as they are forced to act as if the past three years haven’t occurred. For the young girl’s sake, Takayuki

S1·E7 Core

Always Second Thoughts

Nov 15, 2003 · 24 min

As Takayuki spends more and more time at the hospital, his old feelings for Haruka begin to resurface. When Akane walks in and discovers the two in a romantic embrace, she accuses

S1·E8 Core

Old Scars are New

Nov 22, 2003 · 24 min

As Takayuki begins to enjoy the fantasy more than the reality, Mitsuki becomes suspicious and decides to visit Haruka herself. All the young girl can talk about is their “shared” b

S1·E9 Core

Unraveling

Nov 29, 2003 · 24 min

Everyone’s lives are spiraling out of control. Takayuki doesn’t seem to have even the slightest interest in the promotion being offered to him at work, and Mitsuki’s drinking is ge

S1·E10 Core

Impulses

Dec 6, 2003 · 24 min

Haruka is gaining some awareness of the passage of time, while Takayuki has no idea of where Misuki has disappeared to. When Haruka finally asks what day it is and how much time ha

S1·E11 Core

Where the Blame Lies

Dec 13, 2003 · 24 min

The entire world has gone crazy! Mitsuki has seduced Shinji, taking advantage of his feelings for her, and is now faced with regrets. Haruka’s collapsed back into a coma to protect

S1·E12 Core

Friends to Enemies

Dec 20, 2003 · 24 min

Mitsuki cares for Takayuki as he recovers, telling him how she has given up everything in her life to be with him. Confessing to her affair with Shinji, his lack of anger confirms

S1·E13 Mytharc

The Past Will Catch Up

Dec 27, 2003 · 24 min

Takayuki visits with Haruka. Realizing that three years have passed and things change, she asks him if he’s dating anyone else. He tells here there’s no one. But when Mitsuki visit

S1·E14 Mytharc

Mayal's Gift

Jan 3, 2004 · 24 min

Haruka, having accepted things as they are and dedicated to her rehabilitation, has gained new confidence. She tells Takayuki that they must part ways, thanking him for the memorie

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