The hero Aster overthrows the demon king, but shortly thereafter is transformed into a girl by unknown magic.

Because of the transformation into a girl, Aster loses his heroic abilities,

Aster finds a new job and enjoys his second life.

However, soon a "twisted demon” reappears in the world, which was secretly created by the Demon King and was supposed to disappear with his death. To satisfy his hunger he attacks innocent girls. Among whom turns out to be the former hero Aster ...

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