"A-017, this will be your number from now on. We will be responsible for treating you until you return to normal."
That year, she was nine years old. Since then, a mentally ill little girl suffering from mania has been imprisoned for murder and entered the largest St. Gerian Mental Hospital in City B.
"I didn't mean it... I didn't mean it..." Every day, the girl huddled in the dark corner of the ward, living in deep self-blame and wandering in the abyss of consciousness. One moment he falls into the mind of a mental patient, and the other moment he returns to the world of an innocent girl.
Until that day, she saw her attending doctor lying in front of her room door, and the keys on her waist fell to the ground with a crisp sound.
That day, the end came, and a manic eleven-year-old mentally ill girl returned to the world she had been away from for three years.