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Kaijuu Sekai Seifuku

Name: Kaijuu Sekai Seifuku
Genre: Animation
Released: 2025-04-05

かいじゅうせかいせいふく

Animation

Watch Free

We checked 8 streaming services in India on 04 Jun 2026 at 17:44 IST

2025

1 Season

50 Episodes

Returning Series

About

Following the chaotic and heartwarming daily lives of Kaijuu who have come to Earth to conquer the world and live with their human masters.

#kaiju#anime#monsters

Cast

Aoi Yuuki

as Mera / Gusuka / Aniki / Sugar / Narrator (voice)

Rina Kawaei

as Owner (voice)

Sota Nakajima

as Neighbor's Owner (voice)

Misato Fukuen

as Gaogao (voice)

Megumi Satou

as Garugaru (voice)

Seasons

Season 1

50 episodes2025

Episodes

Season 1

See all 50episodes →

I Want You to Clean Up

Apr 5, 20253m

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.

I Want to Go on a Diet

Apr 12, 20253m

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?!

I Want to Go Outside and Play

Apr 19, 20253m

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!

Ah, I'm grateful

Apr 26, 20253m

It's Children's Day

May 3, 20253m

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...

It's Moving Soba

May 10, 20253m

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!

They are New Monsters

May 17, 20253m

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

The House Next Door is Leaking

May 24, 20253m

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!

Where does Kaijuu Sekai Seifuku rank today?

Kaijuu Sekai Seifuku is #7144 on the CineFlixo Daily Streaming Charts today.

Highest: #7144
Top 10: 0 days
Top 100: 0 days

Watch Kaijuu Sekai Seifuku Online Free — All Episodes in HD

Stream Kaijuu Sekai Seifuku online free in HD on CineFlixo. A talked-about animation series originally produced in Japonés and released in 2025, it's earned a solid 0.0/10 from 0 viewers worldwide.

About Kaijuu Sekai Seifuku

Following the chaotic and heartwarming daily lives of Kaijuu who have come to Earth to conquer the world and live with their human masters. Across 1 season and 50 episodes, originally airing on TV Tokyo, with status "Returning Series".

Kaijuu Sekai Seifuku Cast and Characters

The cast features Aoi Yuuki (as Mera / Gusuka / Aniki / Sugar / Narrator (voice)), Rina Kawaei (as Owner (voice)), Sota Nakajima (as Neighbor's Owner (voice)), Misato Fukuen (as Gaogao (voice)), and Megumi Satou (as Garugaru (voice)). Their performances are a major reason Kaijuu Sekai Seifuku has built such a passionate audience.

Where to Watch Kaijuu Sekai Seifuku Online

On CineFlixo you can watch Kaijuu Sekai Seifuku free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.

▶ Watch Kaijuu Sekai Seifuku Now

Why People Are Watching Kaijuu Sekai Seifuku

Kaijuu Sekai Seifuku flies under the radar but it deserves your attention. What makes it work is a tone and style that's hard to find elsewhere. If you enjoy Japonés storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.

Frequently Asked Questions about Kaijuu Sekai Seifuku

Where can I watch Kaijuu Sekai Seifuku online for free?

You can watch Kaijuu Sekai Seifuku online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.

How many episodes does Kaijuu Sekai Seifuku have?

Kaijuu Sekai Seifuku has 50 episodes across 1 season. All episodes are available to stream right here on CineFlixo.

Is Kaijuu Sekai Seifuku good? What's the rating?

Kaijuu Sekai Seifuku holds a 0.0/10 rating based on 0 reviews — a niche pick worth checking out.

Who is in the cast of Kaijuu Sekai Seifuku?

The main cast includes Aoi Yuuki, Rina Kawaei, Sota Nakajima, and Misato Fukuen, plus a strong supporting ensemble.

Is Kaijuu Sekai Seifuku available in Japonés?

Yes — Kaijuu Sekai Seifuku was originally produced in Japonés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.

When was Kaijuu Sekai Seifuku released?

Kaijuu Sekai Seifuku first aired in 2025.

Do I need an account to watch Kaijuu Sekai Seifuku on CineFlixo?

No. CineFlixo is free and you can watch Kaijuu Sekai Seifuku without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.

Similar Series You Might Like

If you enjoyed Kaijuu Sekai Seifuku, check out Bosco Adventure, Negative Positive Angler, Harmony of Mille-Feuille, Paradise of Innocence, and Shukan Ranobe Anime.

Frequently Asked Questions

Where can I watch Kaijuu Sekai Seifuku for free?

You can watch Kaijuu Sekai Seifuku online for free on CineFlixo. All 50 episodes across 1 season are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.

How many seasons and episodes does Kaijuu Sekai Seifuku have?

Kaijuu Sekai Seifuku currently has 1 season and a total of 50 episodes. The series status is "Returning Series", so the episode count may grow as new seasons are released. You can browse the full episode list on CineFlixo and continue watching from where you left off.

What is Kaijuu Sekai Seifuku about?

Following the chaotic and heartwarming daily lives of Kaijuu who have come to Earth to conquer the world and live with their human masters. It belongs to the Animation genre.

In which language is Kaijuu Sekai Seifuku originally available?

Kaijuu Sekai Seifuku was originally produced in JA. On CineFlixo the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.

When was Kaijuu Sekai Seifuku first released?

Kaijuu Sekai Seifuku first premiered on April 5, 2025 (2025). The show is still ongoing with new episodes being released.