The Worst Episodes of Sparks of Tomorrow

Episode Rankings

1. #1 Worst Episode
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   7.3/10(235 votes)

   #1 - Proof of Love

   S1:E58/2/2026

   Kihachi's latest experiment catches the eye of a strange university graduate, who's convinced that it can help him prove his passion to his crush.

   Director:Noriyuki Kitanohara

   Writer:Yusuke Ichikawa

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   Director:Noriyuki Kitanohara

   Writer:Yusuke Ichikawa
2. 

   7.5/10(150 votes)

   #2 - Engagement Trouble

   S1:E109/6/2026

   Yosuke makes a critical discovery. After Inako and Kihachi clear up their misunderstanding, they help Kengo reconcile with Noriko using a shocking plan.

   Director:Noriyuki Kitanohara

   Writer:Atsuo Ishino

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   Director:Noriyuki Kitanohara

   Writer:Atsuo Ishino
3. 

   7.6/10(206 votes)

   #3 - Elopement

   S1:E78/16/2026

   On the day of Inako's engagement ceremony, Kihachi urges her to chase her dreams and helps her escape. Guided by Stuart's letter, they head for Shiga.

   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata

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   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata
4. 

   7.6/10(122 votes)

   #4 - Electric Brain

   S1:E129/20/2026

   Inako and Kihachi throw themselves into pursuing their dreams. Determined to fulfill Seiroku's vision, Yosuke ropes Kihachi into a colossal project.

   Directors:Minoru Ota, Noriyuki Kitanohara

   Writer:Takaaki Suzuki

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   Directors:Minoru Ota, Noriyuki Kitanohara

   Writer:Takaaki Suzuki
5. 

   7.7/10(467 votes)

   #5 - The Electric Boy

   S1:E17/5/2026

   Early 20th-century Kyoto. Kihachi witnesses the wonders of electricity with Seiroku. Four years later, alone and cynical, he meets a girl deep in prayer.

   Director:Minoru Ota

   Writer:Tatsuhiko Urahata

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   Director:Minoru Ota

   Writer:Tatsuhiko Urahata
6. 

   7.7/10(353 votes)

   #6 - The Mysteries of the Catalog

   S1:E27/12/2026

   In a haze of incense, Yosuke storms into Kihachi's workshop and demands the Catalog — and his fiancée. But why does Inako have it in the first place?

   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata

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   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata
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7. 

   7.7/10(270 votes)

   #7 - The Steadfast Girl

   S1:E47/26/2026

   Inako meets a grieving shop owner whose loss echoes her own. Fully believing in Kihachi's skills, she asks him to build an electric machine to help.

   Director:Ayumu Yoshida

   Writer:Takaaki Suzuki

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   Director:Ayumu Yoshida

   Writer:Takaaki Suzuki
8. 

   7.7/10(119 votes)

   #8 - The Enticing Circuit

   S1:E119/13/2026

   After Inako and Saki sneak into Yosuke's office to find clues about the Electric Brocade, Kihachi vanishes. Inako realizes that her father holds the key.

   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata

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   Director:Ryo Miyaki

   Writer:Tatsuhiko Urahata
9. 

   7.8/10(326 votes)

   #9 - Their Dream

   S1:E37/19/2026

   Full of denial, Yosuke clashes with Kihachi. Later, Inako's sharp senses reveal a secret and her belief inspires Kihachi to recreate an invention.

   Director:Takuya Yamamura

   Writer:Tatsuhiko Urahata

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   Director:Takuya Yamamura

   Writer:Tatsuhiko Urahata
10. 

    7.9/10(268 votes)

    #10 - The Sound of Innovation

    S1:E68/9/2026

    Yosuke challenges Kihachi and the gang to a music battle. With only Inako having musical experience, can they master electric instruments in a week?

    Director:Tatsuya Ishihara

    Writer:Atsuo Ishino

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    Director:Tatsuya Ishihara

    Writer:Atsuo Ishino
11. 

    7.9/10(198 votes)

    #11 - His Brother's Footsteps

    S1:E88/23/2026

    Before Kihachi can figure out how to fix the electric key, Kengo breaks down and confesses the secret he's been carrying for the past three years.

    Director:Takuya Yamamura

    Writer:Takaaki Suzuki

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    Director:Takuya Yamamura

    Writer:Takaaki Suzuki
12. 

    7.9/10(168 votes)

    #12 - Time to Part

    S1:E98/30/2026

    Kihachi makes a shocking decision to protect Inako, but she takes matters into her own hands. Yosuke reminisces about his first meeting with Seiroku.

    Directors:Ayumu Yoshida, Taichi Ishidate

    Writer:Tatsuhiko Urahata

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    Directors:Ayumu Yoshida, Taichi Ishidate

    Writer:Tatsuhiko Urahata
13. 

    8.7/10(92 votes)

    #13 - To the Future We Desire

    S1:E139/27/2026

    As the Electric Brain goes berserk, Kihachi, Inako and Yosuke confront their destinies. Who will stay stuck in the past or look towards the future?

    Director:Unknown

    Writer:Unknown

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    Director:Unknown

    Writer:Unknown