Misa developed multiple personalities due to the abuse she suffered from her father during childhood. Despite this, she married and built a happy family life with her husband and son. Her days were peaceful, and her mind remained calm. However, when her son brings home a man named Akira, the wounds of her buried past are reopened. Akira's presence shakes Misa to her core, awakening memories she had nearly forgotten. This shock destabilizes her inner world once again, giving rise to new conflicts.