A side story of Mahouka Koukou no Rettousei that focuses on Shiba Tatsuya's younger sister's viewpoint and experiences of the events taking place in the main story.

Is he the heroine? Is she the hero? A romantic comedy about the secret identities of a high school boy who's been transformed into a magical girl and a high school girl who transforms into a super warrior!

This isn't about a war between empires, nor is it about a journey across another world. Trust me. This isn't about leveling up or cultivation, either. The truth is, this is a very serious science fiction on ...