Boxing Really Is a Wonderful Thing

A man known as a "violent maniac" transmigrates into a girl from the slums, only to be captured by the criminal underworld and forced to fight in the ring.

Now, Kazami Haruka has only two choices before her.

1. Give up resisting.

2. Defeat her opponent in the ring.

Though her body is weaker now, the "violent maniac" in her hasn't changed.

There can only ever be one winner!