In the world of underground idols, there is a multitude of different kinds of events that you can attend and some of them are different from others. And they might be different from more 'conventional' events you might have attended for major groups before. So this post will try to touch on as many different types as possible.
Roughly, events can be categorized into the following groups:
Multi-Group events are joint concerts or events or 'festivals' that include a multitude of different groups and goes on for a longer period of time.
Within the Single Group category, you will find all the events that are done by one group only for the most part (other groups might be guests but the events are still counted as being 'solo events').