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!
Seasons and episodes
1 season · 3 episodes
Starring
Fuyuka Ono
Yoji (voice)
Ryoko Shiraishi
Kei (voice)
Akemi Kanda
Kelly (voice)
Sayuri Yahagi
Samhen (voice)
Rie Kugimiya
Jack (voice)
Ami Matsushima
Samhen's mother (voice)
Hikaru Akao
Girl 1 (voice)
Hana Sato
Girl's mother (voice)
Yasunao Sakai
Man 1 (voice)
Naoya Nakanishi
Man 2 (voice)
Yuu Ayase
Child (boy) (voice)
Saya Hirose
Teacher (voice)
Frequently asked questions
- Where can I watch Fastening Days 4?
- Fastening Days 4 is not currently listed on a streaming service in the US. Use the country picker on the page to check other markets.
- How many seasons of Fastening Days 4 are there?
- Fastening Days 4 has 1 season and 3 episodes. Status: Ended.
- Will there be a new season of Fastening Days 4?
- Fastening Days 4 has ended; no new episodes are scheduled. The final episode aired on December 26, 2019.
- Who stars in Fastening Days 4?
- Fastening Days 4 stars Fuyuka Ono, Ryoko Shiraishi, Akemi Kanda, Sayuri Yahagi, Rie Kugimiya.
