Itsuki Sora, a high school boy with secrets. Secrets that could potentially endangered his life if it were to be exposed to the world. At 6pm when the sun sets, Sora will undoubtly turns into a girl! Born into the Itsuki household, he cannot escape this unfathomable curse. After the death of his parents, and now having to take care of his little sister. He must absolutely avoid uneccessary trouble at all cost.

Shackled with heavy responsibilities and a curse, Sora promised to give it his all to shoulder this burden for the sake of his little sister.

Despite aiming to live a calm and peaceful highschool life, It's not as easy as he thought it would be. Constantly being involved with his classmates, will his secrets remain safe? Or will he be exposed? What does fate have in store for him (or her)?