Fastening Days 4 (2019–2019)

TV ShowEndedYouTubeAnimation1 season, 3 episodes
Fastening Days 4 poster

Plot

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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Episodes by season

Season013Episodes2019Aired—Season avg
  1. S01E01Episode 1December 5, 2019—
  2. S01E02Episode 2December 19, 2019—
  3. S01E03Episode 3December 26, 2019—

Season 1 ranked & reviewed

Castfull cast & details

Fuyuka OnoFuyuka OnoYoji (voice)Ryoko ShiraishiRyoko ShiraishiKei (voice)Akemi KandaAkemi KandaKelly (voice)Sayuri YahagiSayuri YahagiSamhen (voice)Rie KugimiyaRie KugimiyaJack (voice)Ami MatsushimaAmi MatsushimaSamhen's mother (voice)Hikaru AkaoHikaru AkaoGirl 1 (voice)Hana SatoHana SatoGirl's mother (voice)

Photos

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Fastening Days 4

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