This cartoon is mainly about three good friends who go to school and study together. They go to school and leave school together like normal students every day, which is no different from ordinary students. But as long as people or things around them are in danger, they will put on their special pajamas when everyone is sleeping in the dark. Everyone has an animal amulet of his own and becomes a superhero with super powers.
Generally, it is the daughter of the moon, the night ninja or Romeo who do bad things, three small villains with different roles. They often lead their subordinates to destroy cities or public goods, but when they do, their three little heroes will appear and be laughed at by these little villains every time. They think that they are outnumbered and inferior to them, and they can certainly beat them, but they can play beautifully every time.
Although the three of them sometimes disagree and infighting often happens, they can always unite to defeat the bad guys in the end. I didn't like watching cartoons, but my daughter likes watching them very much. She always looks at them with relish, and sometimes tells me what to do and explains what she sees.