Ensemble Stars! is a Japanese mobile idol-raising game developed by Happy Elements. The narrative centers on , a private school specializing in idol training. The characters are divided into units (idol groups) that compete in the "Ensemble Festival" and "Dream Festival." The cast is notable for its psychological depth, exploring themes of trauma, ambition, and recovery from a dark period in the school's history known as the "War."

Ensemble Stars is a popular Japanese mobile game developed by Happy Elements. The game features a variety of characters, each with their own unique personalities, backstories, and abilities. Here are some of the main characters:

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Characters in Ensemble Stars!! (the current era) are organized into units under four primary entertainment agencies, each with its own philosophy.