In this world there is a secondary gender that is revealed when you reach a certain age with unique characteristics and thus determining your position in society.

Bakugou had been my childhood friend together with Midoriya but things changed when I had to move to another country far away from them. A few years later I ended up returning to Japan and studying at Aldera Junior High. Bakugou had changed and I knew that when on my first day I intervened while teasing Midoriya.