After completing the first playthrough of a cornered storyline, Hoshino Hara unexpectedly transmigrates into the world—becoming the ordinary older brother of Hoshino Hikari, one of the strongest magical girls in the story.
Hoshino Hara is understandably shaken, because he knows how the first timeline ends: all magical girls fall into corruption and ultimately bring about the destruction of the world.
After a series of failed attempts, and unable to join the Magical Girl Alliance, Hoshino Hara makes a different choice—he joins the villain side…
