In the suburban town of Tokisadame, Professor Shinonome is known as the girl-genius inventor working at Shinonome Laboratory. She lives with her definitely-not-robotic older sister, Nano, and her talking cat, Mr. Sakamoto. Her life is rather ordinary. What people don't know is what the Professor is up to in the middle of the night. Nano will investigate.

Knuckles loves Amy. Amy loves Knuckles. But being together would be dangerous!