3 episodes
First episode: E1
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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Show FAQ
Quick answers about this series, release status, and episode totals.
When did Fastening Days 4 first air?
Fastening Days 4 first aired on December 5, 2019.
How many seasons and episodes does Fastening Days 4 have?
Fastening Days 4 currently has 1 season and 3 episodes.
When is the next episode of Fastening Days 4?
Fastening Days 4 is ended, and no upcoming episode is currently scheduled.