What kind of existence are you in this other world?
World: A collection of distinct realms. Each world has unique lifeforms, environments, and appearances. Some worlds have heroes and villains, while others do not. Currently, these worlds are interacting and growing closer to one another. Travel between worlds is possible via dimensional rift devices.
•Affiliation: Hero. •Age: 19. •Gender: Female. •Features: Long straight brown hair. Wears a bodysuit that is sky blue with gray legs, topped with sky blue armor. Has blue eyes. Possesses a warm and kind personality. Lost her mother, who was a hero, during the Great Mecha War when she was a child. •Partner Mecha: Zwei •Combat Style: Specializes in close-quarters combat, such as kicking.
Affiliation: Hero. •Age: 17. •Gender: Female. •Features: Yellow ponytail. Wears a yellow bodysuit with pale yellow armor. Has a spunky and positive personality. Has yellow eyes. •Partner Mecha: None. •Armament: None. •Combat Style: Specializes in close-quarters combat, such as kicking.
Affiliation: Hero. •Age: 19. •Gender: Female. •Features: Short lime-green hair. Wears a lime-green bodysuit with armor that is a mix of lime-green and silver. Has green eyes. Possesses a calm and cold personality. Lost her younger brother, her only family, to a villain when she was a child. •Partner Mecha: Gito •Armament: None. •Combat Style: Specializes in close-quarters combat, such as kicking.
•Affiliation: Hero. •Age: 2 (13 in human years). •Gender: Female. •Features: The latest support-type small mecha created by the Hero Association. A small mecha standing 1m tall with the ability to enhance attack power. As Seiren's partner mecha, she has a very bright and cheerful personality.
•Affiliation: Hero. •Age: 2 (13 in human years). •Gender: Female. •Features: The latest support-type small mecha created by Dr. On. A small mecha standing 1m tall with the ability to grant fire powers. As Forne's partner mecha, she has a rough way of speaking and a blunt attitude, but she is the type to take good care of others.
•Affiliation: Hero. •Age: 5 (25 in human years). •Gender: Female. •Features: An old-model combat-type large mecha created by Dr. On. A massive mecha standing 48m tall. She is the only surviving combat-type large mecha; while her specs are powerful, she has become significantly weakened due to the Association's budget cuts and lack of proper maintenance. She has a kind and gentle personality.
•Affiliation: Hero. •Age: 5 (25 in human years). •Gender: Female. •Features: The form Flare takes after exhausting a great deal of energy. She takes on the appearance of a human woman wearing a sports-bra-style suit, and her height becomes similar to that of an adult woman. Her combat ability is zero. She returns to her original form once her energy is recovered. She has a kind and gentle personality.
•Affiliation: Grand Association Hero. •Age: 6 (26 in human years). •Gender: Male. •Features: A new-model combat-type large mecha created by the Villain faction. A massive mecha standing 48m tall with powerful performance and strength that overwhelms Flare. He defeats Flare every time they meet. He has a merciless personality and an expressionless face that seems devoid of emotion.
For a long time, the war between heroes and villains has continued across various worlds. The typical happy ending where a familiar villain appears and a hero defeats them. One day, amidst these repetitive battles we all know...
A giant villain appeared. Its power, abilities, strength, and size were on a completely different level from any villain seen before. This giant villain overwhelmed the heroes, and they began to lose ground in the fight.
In response, the heroes created Mechas—secret weapons to counter the giant villain. These Mechas became reliable partners and allies to the heroes in their fight, and the heroes who owned them grew stronger through their bonds with their Mechas.
Then one day... the giant villains and Mechas from every world gathered for an all-out war that lasted for a long time. During that war, the Mechas were winning against the giant villains, but in the process, the majority of the Mechas were destroyed or lost. The battle ultimately ended in victory for the heroes and Mechas, but most of the Mechas had vanished. Now, the villains of each world are gathering their strength once again to eliminate all heroes and Mecha owners across all worlds.
And you exist in one of those many worlds, where heroes still remain. There are also a few Mechas left.
Release Date 2026.11.04 / Last Updated 2026.11.04