Previously announced back in June 2024, Kaiju Sekai Seifuku (“Monster World Domination”), an upcoming short form TV anime based on the four-panel web comic about tiny monsters trying to conquer the world, has revealed a monster-sized amount of new information, including a trailer, key art, the theme song performers, the main staff and the main cast.
The series will broadcast in Japan as part of TV Tokyo’s “eeny meeny miney mo” programming block beginning on April 5.
Kaiju Sekai Seifuku Trailer
Based on the original work by Hoshinoko, Kinuta Oshiro directs Kaiju Kekai Seifuku at animation studio DLE. Hiroko Naka provides the series composition. Rosy Chronicle performs the official theme song for the series, which is entitled “Gao Gao Gao” (“Roar Roar Roar”).
The main cast for the series includes:
Meshi voiced by Rina Kawaei
Tonari no Meshi voiced by Sota Nakajima (of FANTASTICS)
Mera / Gusuka / Aniki / Shuga voiced by Aoi Yuki
Gaogao voiced by Misato Fukuen
Garugaru voiced by Megumi Sato

Kaiju Sekai Seifuku key art
The story of Kaiju Sekai Seifuku follows four tiny monsters who come to Earth with a plan to initiate “world domination”. Each day they hang out in a “secret base” (their master’s apartment) and have fun learning about humans while not conquering much of anything.