My Sister Turned Me Into a Witch!

Fate is like a gear. Once you touch the gear, you can't turn back.

One day, by chance, the boy was turned into a girl by his sister. She is a witch who has the duty to protect the city and uses magic. It doesn't matter if I want to protect the city, but why do I have to become a girl? The 18-year life of Hiroki Kobashi as a man came to an end.