Fastening Days 4
First air date: 2019-12-05

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Yoji, Kei, Kelly, and the bear-shaped robot Oscar save the town yet again using Fastening Machines! This time, they meet a kindhearted young boy named Samhen and his AI robot Jack. Shy Samhen, who transfers into Kei and Kelly's class, doesn't seem to like talking about himself much, but his chatty little buddy Jack is more than happy to help him communicate. One peaceful afternoon, the young heroes must protect the town from sudden and serious danger! Will they be able to save everyone? Pay attention to the bond between AI and humans, which the children take action to protect!


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Fuyuka Ono

as Yoji (voice)

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Ryoko Shiraishi

as Kei (voice)

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Akemi Kanda

as Kelly (voice)

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Sayuri Yahagi

as Samhen (voice)

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Rie Kugimiya

as Jack (voice)

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Ami Matsushima

as Samhen's mother (voice)

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Hikaru Akao

as Girl 1 (voice)

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Hana Sato

as Girl's mother (voice)

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Yasunao Sakai

as Man 1 (voice)

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Naoya Nakanishi

as Man 2 (voice)

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Yuu Ayase

as Child (boy) (voice)

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Saya Hirose

as Teacher (voice)

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Yohei Kawamura

Art Designer

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Chiwan

Key Animation

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Yoshinori Sunahara

Original Music Composer

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Hyein

Key Animation

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Kenta Taniguchi

Key Animation

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Makoto Ogasawara

Character Designer

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Toshiya Wada

Sound Effects

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Seigo Kujirai

Key Animation

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Moaang

Animation Director

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Saori Goda

Color Designer

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Eri Irei

Animation Director

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Tetsuya Ishii

Key Animation

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PEBBLE

Key Animation

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Manato Onishi

Key Animation

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Sugoroku

Key Animation

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