Yomawari Night Alone Key

A young woman walks her Poro dog through the city at dusk, when a tragic accident forces her to return home only with Poro's leash in her hand.

The girl's sister orders her to stay home while she goes out at night to look for the dog. Time passes. Becoming impatient, the girl decides to look for her missing sister and dog alone.

But when he sets foot outside, he realizes it's not the same city anymore.
The darkness has made the city unknown, and she seems completely alone ... except for the spirits that follow her. The girl must hide from hunting spirits, be smarter or run away from them, while looking for clues to find loved ones.