A High School Girl Who has become a Boy

One day, high school girl Kamishiro Tsumugi suddenly becomes a boy...?! A new everyday life begins with her female childhood friend and the boys in her class. ___ This is a different story, set in the same world as '[Zenbu Kimi no Sei](https://mangadex.org/title/82476383-e6a9-41a7-b98c-87cc8be9efbb/zenbu-kimi-no-sei)'