They say that most everyone goes through a Chuunibyou stage in their life. Most of the time the obsessions are very embarrassing and... well can scar a human being so badly that they will go to great lengths to distance themselves from that particular part of their lives. Yuuta is one such child, running from his past as the Dark Flame Master. Problem is that he slips up a bit and lets his secret out to a girl who has not quite gotten over her Chuunibyou stage despite having moved on to the common time when that happens. Now poor Yuuta gets to suffer through his embarrassing past in an effort to keep it quiet. Lucky for him he is not alone.