Aoi Yuuki
Mera / Gusuka / Aniki / Sugar / Narrator (voice)
Series
Watch Kaijuu Sekai Seifuku (2025) Online
No video is available for Kaijuu Sekai Seifuku - S1E1 yet. Check back soon.
Synopsis
Following the chaotic and heartwarming daily lives of Kaijuu who have come to Earth to conquer the world and live with their human masters.
Episodes
Season 1
PreviousNext
1. I Want You to Clean UpNow viewing2025-04-053mI'm a 28-year-old office worker who lives with monsters in Tachikawa. The monsters' names are Mera, Gooska, Aniki, and Sugar. Living together is just fun... but it seems that's not all that great.
2. I Want to Go on a Diet2025-04-123mI started exercising to try and get rid of my weight. The monsters help me out, but it seems like more of a nuisance than a blessing. And then, Sugar finally gets a great skill... but how?!
3. I Want to Go Outside and Play2025-04-193mOn a nice day, you took the monsters to the park. The monsters were nervous about swinging on the swings for the first time. But you taught them how to ride them... and they had a lot of fun!
4. Ah, I'm grateful2025-04-263m
5. It's Children's Day2025-05-033mIt's Children's Day. The boss made the monsters helmets and swords out of newspapers. The monsters are engrossed in play sword fighting. There is one more thing in the sky that makes the monsters happy...
6. It's Moving Soba2025-05-103mOne day, a box of moving soba noodles was left in front of my house. It seems that someone has moved in next door. But they look like some pretty surprising people!
7. They are New Monsters2025-05-173mIt seems that two monster brothers, GaoGao and Garuga, have moved in next door. Will they be able to get along with the others?
8. The House Next Door is Leaking2025-05-243mThe Gaogaru brothers live with a businessman a little younger than them. They just moved in, and now their house is leaking... They call for help, a skilled repairman!
9. It's a Cat2025-05-313mThe cat Shisho, the siblings' idol, seems to have learned a lot of things. But he still hasn't mastered bath time. The only way to surpass Shisho is to master bath time.
10. It's the Monsters' Secret2025-06-073mMera, Gooska, Aniki and Sugar are not just cute monsters. They each have their own incredible secrets!
11. My First Time Meeting My Neighbor2025-06-143mThis was your first face-to-face encounter with your neighbor! Since you both live with monsters, you two seemed to hit it off right away. With monsters so close by, could there be more out there...?!
12. My First Bookstore2025-06-213mAt the bookstore that you took us to, the monsters seemed to be fascinated by the dinosaur picture book. But then they wondered, "What are dinosaurs?" You had trouble explaining it...
13. I Go Out on Rainy Days2025-06-283mMera and her friends go out wearing raincoats on a rainy day. They bump into the Gaogaru brothers and end up going to a candy store. Something unbelievable happens there!
14. I Want to See a Shooting Star2025-07-053mIt seems that if you make a wish on a shooting star, it will come true. The monsters and I tried our best not to fall asleep while waiting for the shooting star... but did everyone's wishes come true?
15. A Spicy Cheer Me Up2025-07-123mIt seems like the guy next door has had a bad day at work. When Master and Mera found out about this, they wanted to somehow encourage him, and Mera came up with a great idea... but is that really true!?
16. Instant Noodle Eel Day2025-07-193m
17. The Friends I Met over the Summer2025-07-263mMera and her friends go to the park wearing the straw hats that their master bought them. There is a unicorn playground equipment there, and Mera puts her straw hat on the unicorn. That night, something surprising happens!
18. I Tried the Summer Festival2025-08-023mMera and her friends invite the Gaogaru brothers over to their master's house to play a summer festival. Gaogaru has a blast and leaves, but what's the master's reaction next door?
19. It's Important to Get Up Early2025-08-093mGusuka really wanted to see the morning glory flowers that bloom early in the morning. Sleepyhead Gusuka tried his best to get up early, but was he able to see the morning glories?
20. It's a Delicious Green Feast2025-08-163mMy relatives sent me a lot of edamame beans, so I thought I'd share them with my neighbors, but instead they sent me a lot of bitter melon... We'll just have to have a party!
21. It's So Hot, I Can't Stand It2025-08-233mBe careful even inside the house on hot days! I prepared a secret weapon for the monsters staying at home alone... I never thought it would turn out like this!!
22. Shaved Ice is the Best!2025-08-303mShaved ice is the best thing on a hot day! I made shaved ice for the monsters, but... My brother, who loves cold food, helped me out!
23. Typhoons are Dangerous!!2025-09-063mA typhoon is approaching Tachikawa, where the brothers live! The brothers and the monsters are fully prepared. However, the neighbor says he wants to go to work... Will the brothers be able to stop him with their trump card?
24. Dango is Better Than the Moon?2025-09-133mOn the fifteenth night of the lunar month, the lord and his brothers, along with their neighbor's brother, each went to watch the moon. The full moon is beautiful, but what are the monsters looking for...?
25. Turn into a Monster Eggplant!?2025-09-203mA relative sent a lot of eggplants, so she cooked every eggplant dish she could think of and served them to the monsters. But the next morning, the monsters got into some trouble!
26. We're the Three Snack-Buyers2025-09-273mGaoGao and GaruGaru invite the foodie Sugar to buy some snacks. Then, just as they try to strengthen their bond as friends, something terrible happens!
27. Autumn Art2025-10-043mMera, Gooska, Aniki, and Sugar each completed a piece of work using the master as a model. What kind of creations did they create...?
28. Autumn, the Season for Cleaning2025-10-113mAutumn is the season for reading, appetite, and sports... they all sound fun. What kind of autumn will it be for GaoGao and GaruGaru?
29. I'm Picking Chestnuts2025-10-183mMera and her friends are excited about their first chestnut picking adventure. However, the number of chestnuts they picked doesn't match the number they brought home. What could have happened?
30. Happy Halloween2025-10-253mMera, Gusuka, Aniki and Sugar dress up in strange costumes and go to their neighbor's house. Will GaoGao and GaruGaru give them sweets?
31. The President is Surprised2025-11-013mApparently, the man next door made a mistake at work, and is drinking with GaoGao and GaruGaru at a food stall. Then, to his surprise, the company president shows up...and a shocking secret is revealed!
32. Mochasuke is Amazing2025-11-083mThe president knows a lot of good things about Mochasuke. Will he be able to get along with Mera, Gusuka, Aniki, Sugar, Gaogao and Garugaru?
33. Episode 332025-11-153m
34. Episode 342025-11-223m
35. Episode 352025-11-293m
36. Episode 362025-12-063m
37. Episode 372025-12-133m
38. Episode 382025-12-203m
39. Episode 392025-12-273m
40. Episode 402026-01-103m- 41. Episode 412026-01-173m
- 42. Episode 422026-01-243m
- 43. Episode 432026-01-313m
- 44. Episode 442026-02-073m
- 45. Episode 452026-02-143m
- 46. Episode 462026-02-213m
- 47. Episode 472026-02-283m
- 48. Episode 482026-03-073m
- 49. Episode 492026-03-143m
- 50. Episode 502026-03-213m
Cast
Top Billed Cast
Rina Kawaei
Owner (voice)
Sota Nakajima
Neighbor's Owner (voice)
Misato Fukuen
Gaogao (voice)
Megumi Satou
Garugaru (voice)
Availability
Where To Watch Legally
No legal streaming, rental or purchase options for Kaijuu Sekai Seifuku were reported for this region.
Recommended
More Like This
SeriesKaiju No. 8
8.52024
SeriesIkkyū-san
7.51975
SeriesClassroom Crisis
7.52015
SeriesMike, Lu & Og
6.01999
SeriesMonster Hunter Stories: Ride On
7.92016
SeriesTsubasa RESERVoir CHRoNiCLE
7.02005
SeriesMaison Ikkoku
7.51986
SeriesTawawa on Monday
6.52016
SeriesPacific Rim: The Black
8.22021
SeriesThe Seven Deadly Sins: Four Knights of the Apocalypse
8.12023
SeriesGachiakuta
8.62025
SeriesDigimon: Digital Monsters
8.11999
SeriesSeraph of the End
7.82015
SeriesBeware the Batman
7.22013
SeriesAdventure Time: Fionna and Cake
8.72023
SeriesX
7.42001
SeriesStar vs. the Forces of Evil
8.42015
SeriesKiff
8.42023
SeriesMickey Mouse
7.72013
SeriesThe Strongest Job Is Apparently Not a Hero or a Sage, But an Appraiser (Provisional)!
7.82026
FAQ
Frequently Asked Questions
Is Kaijuu Sekai Seifuku available to watch online?
Vidbox does not currently have a legal streaming, rental or purchase option on record for Kaijuu Sekai Seifuku in this region.
How many seasons does Kaijuu Sekai Seifuku have?
Kaijuu Sekai Seifuku has 1 season and 50 episodes.
When did Kaijuu Sekai Seifuku first air?
Kaijuu Sekai Seifuku first aired in 2025.
Is Kaijuu Sekai Seifuku still running?
Yes, Kaijuu Sekai Seifuku is an ongoing series.
What genre is Kaijuu Sekai Seifuku?
Kaijuu Sekai Seifuku is classified as Animation.