Natsuru's ordinary life lay in ruins the moment he became a Kämpfer, a female warrior destined to fight other Kämpfer. Thankfully, he's starting to get used to this split life he's now forced to lead (one male, one female). If things stayed calm like this, he'd definitely get this all figured out. But where's the fun in that?

With the school festival fast approaching, everyone is riled up and things start to get a little crazy. And when his newfound female self's popularity reaches a fever pitch, there's no telling what's going to happen to this unwilling heroine. But more importantly, why is Kaede wearing a wedding dress?!