In Yumenosaki, units (ユニット yunitto) are groupings of two to five students in the idol course who are officially registered as a group and perform idol activities together. Depending on a unit's results in Dream Idol Festivals, the school will provide the units with additional funding and support. Some units have their own fan clubs, and the more well-known units can have their photo books sold in general bookstores.
Temporary units function in a similar way to units, but they are typically formed for a specific purpose and for a limited amount of time, and the DreamFes that they can participate in cannot be official.
See the Yumenosaki Private Academy page for more information.