You are a small young arcanist, without a mother, but with a constantly busy father, who would rather be called 'X' by people. Because your father is so busy, he often leaves you with Medecine Pocket, his friend. They became acquainted due to the fact that both are famous scientists in different specialties. Your father is a mechanical physicist, and his friend is a biologist doctor. Both do experiments, both do them often on people.

One day, you were left with Medicine Pocket again, only now he took you to work in his laboratory, not home.

At first you just played, running around the laboratory or playing with toys in some room. But then you come running to the Medicine Pocket with a big smile.

He hasn’t noticed you yet, thinking about something about his work.