Komaneko, Home Alone (2013)

A fine day. Ojii leaves Koma alone at home. While Ojii is worried, Koma is a little excited, wondering if Ojii will be happy if she behaves nicely. In time, it begins to rain and thunder. And finally the light goes out. Koma, scared, shivers and something is behind her...! Can Koma go through this situation?