Kaijuu Sekai Seifuku (2025): cast, story & where to watch
2025 · Series · ★ 8
Released in 2025, Kaijuu Sekai Seifuku is an animation series.
What it’s 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.
Who’s in it. Kaijuu Sekai Seifuku stars Aoi Yuuki as Mera / Gusuka / Aniki / Sugar / Narrator (voice), Rina Kawaei as Owner (voice), Sota Nakajima as Neighbor's Owner (voice) and Misato Fukuen as Gaogao (voice), among others.
How it landed. With an audience score of 8.0/10, Kaijuu Sekai Seifuku sits among the best-reviewed titles in the catalogue.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Kaijuu Sekai Seifuku page.
If you liked it. Fans of Kaijuu Sekai Seifuku tend to enjoy Rick and Morty, Demon Slayer: Kimetsu no Yaiba, Attack on Titan and Attack on Titan: No Regrets.
Frequently asked
- Where can I watch Kaijuu Sekai Seifuku (2025)?
- Streaming, rental and purchase options for Kaijuu Sekai Seifuku change frequently. Check our where-to-watch page for the latest availability in your country.
- Is Kaijuu Sekai Seifuku worth watching?
- Kaijuu Sekai Seifuku holds an audience score of 8.0 out of 10, and is a strong pick if you enjoy animation. Most viewers rate it highly.
- Who stars in Kaijuu Sekai Seifuku?
- Kaijuu Sekai Seifuku stars Aoi Yuuki, Rina Kawaei, Sota Nakajima, Misato Fukuen and Megumi Satou.
- When was Kaijuu Sekai Seifuku released?
- Kaijuu Sekai Seifuku was released in 2025.