Youji, 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!
Fastening Days 4 has finished airing and it has 3 Episodes. It is also Known as: FASTENING DAYS 4, Fastening Days 4
Genres: Fantasy , Contemporary Fantasy , Kids , Magic
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Top 5 Anime Like Fastening Days 4 [2026 List]
5. Steven Universe Season 4
Season 4 of steven universe.
Steven Universe Season 4 has finished airing and it has 25 Episodes. It is also Known as: Steven Universe 4th Season, Steven Universe fourth Season
4. Steven Universe Season 5
Season 5 of Steven Universe
Steven Universe Season 5 has finished airing and it has 32 Episodes. It is also Known as: Steven Universe Fifth Season, Steven Universe 5th Season
3. Steven Universe Season 2
Season 2 of Steven Universe
Steven Universe Season 2 has finished airing and it has 26 Episodes. It is also Known as: Steven Universe Second Season, Steven Universe 2nd Season
2. Steven Universe Season 3
3rd Season of Steven Universe
Steven Universe Season 3 has finished airing and it has 25 Episodes. It is also Known as: Steven Universe third Season, Steven Universe 3rd Season
1. Steven Universe
The Crystal Gems are a team of magical beings who are the self-appointed guardians of the universe. Half-human, half-Gem hero Steven is the "little brother" of the group. The goofball is learning to save the world using the magical powers that come from his bellybutton and he goes on magical adventures with the rest of the Crystal Gems, even though he's not as powerful -- or smart -- as fellow group members Garnet, Amethyst and Pearl. Despite his shortcomings, Steven usually finds a surprising way to save the day.
Steven Universe has finished airing and it has 52 Episodes. It is also Known as: Steven Universe
