Yami Shibai 5 EP1 - Wrong Number

The story of a family leading a rather affluent lifestyle. A young woman realized her dream and married an elite businessman. However, contrary to her ideal, her new husband works so much that he has no time for his family, and things aren't going as smoothly as she'd imagined with her new stepchild. One day, as she's beginning to feel he exhaustion of this new life wearing on her, she receives a phone call. It sounds like someone's tried to call the nursery school and reached her by mistake...