Three kids stumble into the job of protecting Earth by basically becoming mobile bases for five tiny heroes who fit in your pocket. The show doesn't pretend this is a sensible arrangement, it leans into the absurdity of third-graders being responsible for alien defense while the actual superheroes depend on them to stay alive. You're watching a partnership that shouldn't work in theory, but becomes real anyway because both sides need each other. This is specifically built for the kid who wants action but also wants to feel like they're part of the team, not watching from a distance.

Three kids meet five tiny superheroes from another world. A boy named Kouhei finds a package at his school, and inside are five small dolls that suddenly come to life. Their leader, Microman, explains that they come from Micro Earth, a planet in outer space, and have arrived to protect Earth from Acroiyar, who plans to conquer it. With the children's help, Microman and his four allies set out to fight off the alien invaders. The series mixes action, adventure, comedy and mecha sci-fi.