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Kaijuu Sekai Seifuku

Season 1 · 50 episodes · Apr 5, 2025

  1. Kaijuu Sekai Seifuku season 1 episode 1 still

    Episode 1

    I Want You to Clean Up

    Apr 5, 2025

    I'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.

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    Episode 2

    I Want to Go on a Diet

    Apr 12, 2025

    I 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?!

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    Episode 3

    I Want to Go Outside and Play

    Apr 19, 2025

    On 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!

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    Episode 4

    Ah, I'm grateful

    Apr 26, 2025

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    Episode 5

    It's Children's Day

    May 3, 2025

    It'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...

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    Episode 6

    It's Moving Soba

    May 10, 2025

    One 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!

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    Episode 7

    They are New Monsters

    May 17, 2025

    It seems that two monster brothers, GaoGao and Garuga, have moved in next door. Will they be able to get along with the others?

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    Episode 8

    The House Next Door is Leaking

    May 24, 2025

    The 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!

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    Episode 9

    It's a Cat

    May 31, 2025

    The 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.

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    Episode 10

    It's the Monsters' Secret

    Jun 7, 2025

    Mera, Gooska, Aniki and Sugar are not just cute monsters. They each have their own incredible secrets!

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    Episode 11

    My First Time Meeting My Neighbor

    Jun 14, 2025

    This 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...?!

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    Episode 12

    My First Bookstore

    Jun 21, 2025

    At 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...

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    Episode 13

    I Go Out on Rainy Days

    Jun 28, 2025

    Mera 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!

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    Episode 14

    I Want to See a Shooting Star

    Jul 5, 2025

    It 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?

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    Episode 15

    A Spicy Cheer Me Up

    Jul 12, 2025

    It 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!?

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    Episode 16

    Instant Noodle Eel Day

    Jul 19, 2025

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    Episode 17

    The Friends I Met over the Summer

    Jul 26, 2025

    Mera 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!

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    Episode 18

    I Tried the Summer Festival

    Aug 2, 2025

    Mera 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?

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    Episode 19

    It's Important to Get Up Early

    Aug 9, 2025

    Gusuka 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?

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    Episode 20

    It's a Delicious Green Feast

    Aug 16, 2025

    My 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!

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    Episode 21

    It's So Hot, I Can't Stand It

    Aug 23, 2025

    Be 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!!

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    Episode 22

    Shaved Ice is the Best!

    Aug 30, 2025

    Shaved 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!

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    Episode 23

    Typhoons are Dangerous!!

    Sep 6, 2025

    A 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?

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    Episode 24

    Dango is Better Than the Moon?

    Sep 13, 2025

    On 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...?

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    Episode 25

    Turn into a Monster Eggplant!?

    Sep 20, 2025

    A 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!

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    Episode 26

    We're the Three Snack-Buyers

    Sep 27, 2025

    GaoGao and GaruGaru invite the foodie Sugar to buy some snacks. Then, just as they try to strengthen their bond as friends, something terrible happens!

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    Episode 27

    Autumn Art

    Oct 4, 2025

    Mera, Gooska, Aniki, and Sugar each completed a piece of work using the master as a model. What kind of creations did they create...?

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    Episode 28

    Autumn, the Season for Cleaning

    Oct 11, 2025

    Autumn is the season for reading, appetite, and sports... they all sound fun. What kind of autumn will it be for GaoGao and GaruGaru?

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    Episode 29

    I'm Picking Chestnuts

    Oct 18, 2025

    Mera 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?

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    Episode 30

    Happy Halloween

    Oct 25, 2025

    Mera, Gusuka, Aniki and Sugar dress up in strange costumes and go to their neighbor's house. Will GaoGao and GaruGaru give them sweets?

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    Episode 31

    The President is Surprised

    Nov 1, 2025

    Apparently, 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!

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    Episode 32

    Mochasuke is Amazing

    Nov 8, 2025

    The president knows a lot of good things about Mochasuke. Will he be able to get along with Mera, Gusuka, Aniki, Sugar, Gaogao and Garugaru?

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    Episode 33

    Episode 33

    Nov 15, 2025

  34. Kaijuu Sekai Seifuku season 1 episode 34 still

    Episode 34

    Episode 34

    Nov 22, 2025

  35. Kaijuu Sekai Seifuku season 1 episode 35 still

    Episode 35

    Episode 35

    Nov 29, 2025

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    Episode 36

    Episode 36

    Dec 6, 2025

  37. Kaijuu Sekai Seifuku season 1 episode 37 still

    Episode 37

    Episode 37

    Dec 13, 2025

  38. Kaijuu Sekai Seifuku season 1 episode 38 still

    Episode 38

    Episode 38

    Dec 20, 2025

  39. Kaijuu Sekai Seifuku season 1 episode 39 still

    Episode 39

    Episode 39

    Dec 27, 2025

  40. Kaijuu Sekai Seifuku season 1 episode 40 still

    Episode 40

    Episode 40

    Jan 10, 2026

  41. Episode 41

    Episode 41

    Jan 17, 2026

  42. Episode 42

    Episode 42

    Jan 24, 2026

  43. Episode 43

    Episode 43

    Jan 31, 2026

  44. Episode 44

    Episode 44

    Feb 7, 2026

  45. Episode 45

    Episode 45

    Feb 14, 2026

  46. Episode 46

    Episode 46

    Feb 21, 2026

  47. Episode 47

    Episode 47

    Feb 28, 2026

  48. Episode 48

    Episode 48

    Mar 7, 2026

  49. Episode 49

    Episode 49

    Mar 14, 2026

  50. Episode 50

    Episode 50

    Mar 21, 2026