It is the 22nd century. Humanity is prospering through the expansion of the Earth's development, but natural destruction has also become extreme. One day Amon, a scientist who opposed the destruction of nature, decided to return to Earth 150 years earlier using a time machine and to protect nature. Police opposed that as it could bring unknown changes and followed Amon. In the 20th century school girl Kurumi heard from a classmate that an aircraft landed in the forest and went alone to the forest out of curiosity. Milk is a police officer from future who landed in the forest colliding with Kurumi. As a result of the collision Kurumi body was seriously hurt and her soul was placed into Milk body until full recovery. Now Kurumi transforms to Milk at whim and back by wearing glasses. Will she find Amon?