My body has been transformed into a woman

Nanami is made fun of her as Nanami-chan by her friends because she looks feminine. With a test of courage, I was able to check out one of the seven wonders that have been passed down in the school. There are rumors about Hanako from the toilet in the toilet on the third floor of the old school building. Nanami heads to the bathroom to find out the true meaning of the rumor... There, Nanami's body, enveloped in a mysterious light, turns into a woman.