
Fastening Days 4
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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Top Cast

Fuyuka Ono
Yoji (voice) · 3 eps

Ryoko Shiraishi
Kei (voice) · 3 eps

Akemi Kanda
Kelly (voice) · 3 eps

Sayuri Yahagi
Samhen (voice) · 3 eps

Rie Kugimiya
Jack (voice) · 3 eps

Ami Matsushima
Samhen's mother (voice) · 3 eps

Hikaru Akao
Girl 1 (voice) · 3 eps

Hana Sato
Girl's mother (voice) · 3 eps

Yasunao Sakai
Man 1 (voice) · 3 eps

Naoya Nakanishi
Man 2 (voice) · 3 eps

Yuu Ayase
Child (boy) (voice) · 3 eps

Saya Hirose
Teacher (voice) · 3 eps
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