Follows Oliver Horn as he enters a prestigious magic school named Kimberly. He discovers that not everything is as it seems, with the emergence of labyrinths, monsters, and other threats that endanger the students.

Spun off from The Idolm@ster (2011), this series follows a new group of idols working alongside the thirty-nine idols of the newly-formed 765PRO Live Theater base at 765 Productions and a producer at the 765 Theater Agency.

In a city ruled by a trading card game, Teruto aims to defeat the King, whose downfall grants any wish. He and Sakura join the Rebuild battle to forge the "Key" and challenge the King for their desires.

The Republic of San Magnolia has been attacked by its neighbor, the Empire.